56764774461 has 16 divisors (see below), whose sum is σ = 76333961088. Its totient is φ = 37520433600.

The previous prime is 56764774447. The next prime is 56764774483. The reversal of 56764774461 is 16447746765.

It is a happy number.

It is not a de Polignac number, because 56764774461 - 2¹¹ = 56764772413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56764776461) 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, 86416 + ... + 347846.

It is an arithmetic number, because the mean of its divisors is an integer number (4770872568).

Almost surely, 2^56764774461 is an apocalyptic number.

It is an amenable number.

56764774461 is a deficient number, since it is larger than the sum of its proper divisors (19569186627).

56764774461 is a wasteful number, since it uses less digits than its factorization.

56764774461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262052.

The product of its digits is 23708160, while the sum is 57.

The spelling of 56764774461 in words is "fifty-six billion, seven hundred sixty-four million, seven hundred seventy-four thousand, four hundred sixty-one".