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68737215870583 = 136112186508371
BaseRepresentation
bin11111010000100001000010…
…10101011011011001110111
3100000101012202202111102111121
433220100201111123121313
533002142304230324313
6402105235133044411
720323046200443631
oct1750204125333167
9300335682442447
1068737215870583
111a9a1320424377
127861896626707
132c47b78c30580
1412d8c82bd5a51
157e302ce5528d
hex3e842155b677

68737215870583 has 8 divisors (see below), whose sum is σ = 74025905987376. Its totient is φ = 63448698892800.

The previous prime is 68737215870551. The next prime is 68737215870709. The reversal of 68737215870583 is 38507851273786.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68737215870583 - 25 = 68737215870551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68737215874583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42459613 + ... + 44048758.

It is an arithmetic number, because the mean of its divisors is an integer number (9253238248422).

Almost surely, 268737215870583 is an apocalyptic number.

68737215870583 is a deficient number, since it is larger than the sum of its proper divisors (5288690116793).

68737215870583 is a wasteful number, since it uses less digits than its factorization.

68737215870583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86569505.

The product of its (nonzero) digits is 474163200, while the sum is 70.

The spelling of 68737215870583 in words is "sixty-eight trillion, seven hundred thirty-seven billion, two hundred fifteen million, eight hundred seventy thousand, five hundred eighty-three".

Divisors: 1 13 61121 794573 86508371 1124608823 5287478143891 68737215870583