252765137764 has 6 divisors (see below), whose sum is σ = 442338991094. Its totient is φ = 126382568880.

The previous prime is 252765137753. The next prime is 252765137767. The reversal of 252765137764 is 467731567252.

It can be written as a sum of positive squares in only one way, i.e., 232669240164 + 20095897600 = 482358^2 + 141760^2 .

It is not an unprimeable number, because it can be changed into a prime (252765137767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31595642217 + ... + 31595642224.

Almost surely, 2^252765137764 is an apocalyptic number.

It is an amenable number.

252765137764 is a deficient number, since it is larger than the sum of its proper divisors (189573853330).

252765137764 is a wasteful number, since it uses less digits than its factorization.

252765137764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63191284445 (or 63191284443 counting only the distinct ones).

The product of its digits is 14817600, while the sum is 55.

The spelling of 252765137764 in words is "two hundred fifty-two billion, seven hundred sixty-five million, one hundred thirty-seven thousand, seven hundred sixty-four".