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57187514679679 = 439783719163771
BaseRepresentation
bin11010000000011000000010…
…11111111000000101111111
321111111001222020001221100101
431000030001133320011333
524443430012224222204
6321343325341141531
715021442632234466
oct1500140137700577
9244431866057311
1057187514679679
11172490a818568a
1264b73a6b5a8a7
1325ba9b47c0767
141019c6768d9dd
156928a2648ea4
hex3403017f817f

57187514679679 has 16 divisors (see below), whose sum is σ = 59121796814080. Its totient is φ = 55280723339520.

The previous prime is 57187514679677. The next prime is 57187514679683. The reversal of 57187514679679 is 97697641578175.

It is a cyclic number.

It is not a de Polignac number, because 57187514679679 - 21 = 57187514679677 is a prime.

It is a super-2 number, since 2×571875146796792 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57187514679677) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 349110064 + ... + 349273834.

It is an arithmetic number, because the mean of its divisors is an integer number (3695112300880).

Almost surely, 257187514679679 is an apocalyptic number.

57187514679679 is a deficient number, since it is larger than the sum of its proper divisors (1934282134401).

57187514679679 is a wasteful number, since it uses less digits than its factorization.

57187514679679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247630.

The product of its digits is 5601052800, while the sum is 82.

The spelling of 57187514679679 in words is "fifty-seven trillion, one hundred eighty-seven billion, five hundred fourteen million, six hundred seventy-nine thousand, six hundred seventy-nine".

Divisors: 1 43 97 4171 83719 163771 3599917 7042153 8120743 15885787 349191949 683088841 13710744349 589562007007 1329942201853 57187514679679