56775576690 has 96 divisors (see below), whose sum is σ = 171564082560. Its totient is φ = 12757312512.

The previous prime is 56775576677. The next prime is 56775576733. The reversal of 56775576690 is 9667557765.

56775576690 is a `hidden beast` number, since 5 + 6 + 77 + 557 + 6 + 6 + 9 + 0 = 666.

It is a super-2 number, since 2×56775576690² (a number of 22 digits) contains 22 as substring.

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, 726559 + ... + 800898.

It is an arithmetic number, because the mean of its divisors is an integer number (1787125860).

Almost surely, 2^56775576690 is an apocalyptic number.

56775576690 is an abundant number, since it is smaller than the sum of its proper divisors (114788505870).

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

56775576690 is a wasteful number, since it uses less digits than its factorization.

56775576690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527536 (or 1527533 counting only the distinct ones).

The product of its (nonzero) digits is 83349000, while the sum is 63.

The spelling of 56775576690 in words is "fifty-six billion, seven hundred seventy-five million, five hundred seventy-six thousand, six hundred ninety".