265431254564 has 12 divisors (see below), whose sum is σ = 530862509184. Its totient is φ = 113756251944.

The previous prime is 265431254563. The next prime is 265431254603. The reversal of 265431254564 is 465452134562.

265431254564 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (265431254563) 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, 4739843804 + ... + 4739843859.

It is an arithmetic number, because the mean of its divisors is an integer number (44238542432).

Almost surely, 2^265431254564 is an apocalyptic number.

It is an amenable number.

265431254564 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

265431254564 is a wasteful number, since it uses less digits than its factorization.

265431254564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9479687674 (or 9479687672 counting only the distinct ones).

The product of its digits is 3456000, while the sum is 47.

The spelling of 265431254564 in words is "two hundred sixty-five billion, four hundred thirty-one million, two hundred fifty-four thousand, five hundred sixty-four".