56683773477 has 6 divisors (see below), whose sum is σ = 81876561702. Its totient is φ = 37789182312.

The previous prime is 56683773473. The next prime is 56683773499. The reversal of 56683773477 is 77437738665.

It is a happy number.

56683773477 is a `hidden beast` number, since 5 + 6 + 68 + 37 + 73 + 477 = 666.

It can be written as a sum of positive squares in only one way, i.e., 51522644196 + 5161129281 = 226986^2 + 71841^2 .

It is not a de Polignac number, because 56683773477 - 2² = 56683773473 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56683773473) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3149098518 + ... + 3149098535.

It is an arithmetic number, because the mean of its divisors is an integer number (13646093617).

Almost surely, 2^56683773477 is an apocalyptic number.

It is an amenable number.

56683773477 is a deficient number, since it is larger than the sum of its proper divisors (25192788225).

56683773477 is a wasteful number, since it uses less digits than its factorization.

56683773477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6298197059 (or 6298197056 counting only the distinct ones).

The product of its digits is 124467840, while the sum is 63.

The spelling of 56683773477 in words is "fifty-six billion, six hundred eighty-three million, seven hundred seventy-three thousand, four hundred seventy-seven".