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74879666316 = 223271342435387
BaseRepresentation
bin100010110111100101…
…1010000100010001100
321011021111022011122200
41011233023100202030
52211323143310231
654222123041500
75260405443030
oct1055713204214
9234244264580
1074879666316
112983568a654
1212619070290
1370a4393480
1438a4b121c0
151e33be7be6
hex116f2d088c

74879666316 has 144 divisors (see below), whose sum is σ = 233057121024. Its totient is φ = 19740163968.

The previous prime is 74879666299. The next prime is 74879666321. The reversal of 74879666316 is 61366697847.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13897375 + ... + 13902761.

Almost surely, 274879666316 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74879666316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116528560512).

74879666316 is an abundant number, since it is smaller than the sum of its proper divisors (158177454708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74879666316 is a wasteful number, since it uses less digits than its factorization.

74879666316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9660 (or 9655 counting only the distinct ones).

The product of its digits is 54867456, while the sum is 63.

The spelling of 74879666316 in words is "seventy-four billion, eight hundred seventy-nine million, six hundred sixty-six thousand, three hundred sixteen".

Divisors: 1 2 3 4 6 7 9 12 13 14 18 21 26 28 36 39 42 52 63 78 84 91 117 126 156 182 234 252 273 364 468 546 819 1092 1638 3276 4243 5387 8486 10774 12729 16161 16972 21548 25458 29701 32322 37709 38187 48483 50916 55159 59402 64644 70031 75418 76374 89103 96966 110318 113127 118804 140062 150836 152748 165477 178206 193932 210093 220636 226254 267309 280124 330954 339381 356412 386113 420186 452508 490217 496431 534618 630279 661908 678762 772226 840372 980434 992862 1069236 1158339 1260558 1357524 1470651 1544452 1960868 1985724 2316678 2521116 2941302 3475017 4411953 4633356 5882604 6950034 8823906 13900068 17647812 22857041 45714082 68571123 91428164 137142246 159999287 205713369 274284492 297141533 319998574 411426738 479997861 594283066 639997148 822853476 891424599 959995722 1188566132 1439993583 1782849198 1919991444 2079990731 2674273797 2879987166 3565698396 4159981462 5348547594 5759974332 6239972193 8319962924 10697095188 12479944386 18719916579 24959888772 37439833158 74879666316