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56968918877 = 1373307195539
BaseRepresentation
bin110101000011100111…
…001011011101011101
312110001021001221010102
4311003213023131131
51413133020401002
642100545350445
74054512551333
oct650347133535
9173037057112
1056968918877
1122184518a42
12b05a938425
1354ab7b2870
142a860b9b53
1517365bea02
hexd439cb75d

56968918877 has 16 divisors (see below), whose sum is σ = 62394467520. Its totient is φ = 51697118592.

The previous prime is 56968918871. The next prime is 56968918889. The reversal of 56968918877 is 77881986965.

It is a cyclic number.

It is not a de Polignac number, because 56968918877 - 24 = 56968918861 is a prime.

It is a super-2 number, since 2×569689188772 (a number of 22 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 (56968918871) 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, 193574 + ... + 389112.

It is an arithmetic number, because the mean of its divisors is an integer number (3899654220).

Almost surely, 256968918877 is an apocalyptic number.

It is an amenable number.

56968918877 is a deficient number, since it is larger than the sum of its proper divisors (5425548643).

56968918877 is a wasteful number, since it uses less digits than its factorization.

56968918877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195932.

The product of its digits is 365783040, while the sum is 74.

The spelling of 56968918877 in words is "fifty-six billion, nine hundred sixty-eight million, nine hundred eighteen thousand, eight hundred seventy-seven".

Divisors: 1 13 73 307 949 3991 22411 195539 291343 2542007 14274347 60030473 185566511 780396149 4382224529 56968918877