56762218973 has 4 divisors (see below), whose sum is σ = 56766634428. Its totient is φ = 56757803520.

The previous prime is 56762218967. The next prime is 56762218987. The reversal of 56762218973 is 37981226765.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15464663449 + 41297555524 = 124357^2 + 203218^2 .

It is a cyclic number.

It is not a de Polignac number, because 56762218973 - 2⁸ = 56762218717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56762218943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2188388 + ... + 2214173.

It is an arithmetic number, because the mean of its divisors is an integer number (14191658607).

Almost surely, 2^56762218973 is an apocalyptic number.

It is an amenable number.

56762218973 is a deficient number, since it is larger than the sum of its proper divisors (4415455).

56762218973 is a wasteful number, since it uses less digits than its factorization.

56762218973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4415454.

The product of its digits is 7620480, while the sum is 56.

The spelling of 56762218973 in words is "fifty-six billion, seven hundred sixty-two million, two hundred eighteen thousand, nine hundred seventy-three".