56977190969 has 8 divisors (see below), whose sum is σ = 57149415912. Its totient is φ = 56805027840.

The previous prime is 56977190947. The next prime is 56977190981. The reversal of 56977190969 is 96909177965.

It can be written as a sum of positive squares in 4 ways, for example, as 1180609600 + 55796581369 = 34360^2 + 236213^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 56977190969 - 2²⁴ = 56960413753 is a prime.

It is a super-2 number, since 2×56977190969² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 56977190899 and 56977190908.

It is not an unprimeable number, because it can be changed into a prime (56977190269) 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, 2386049 + ... + 2409809.

It is an arithmetic number, because the mean of its divisors is an integer number (7143676989).

Almost surely, 2^56977190969 is an apocalyptic number.

It is an amenable number.

56977190969 is a deficient number, since it is larger than the sum of its proper divisors (172224943).

56977190969 is a wasteful number, since it uses less digits than its factorization.

56977190969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30907.

The product of its (nonzero) digits is 57868020, while the sum is 68.

The spelling of 56977190969 in words is "fifty-six billion, nine hundred seventy-seven million, one hundred ninety thousand, nine hundred sixty-nine".