231455265864 has 32 divisors (see below), whose sum is σ = 589555869120. Its totient is φ = 75696061376.

The previous prime is 231455265799. The next prime is 231455265883. The reversal of 231455265864 is 468562554132.

231455265864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90979572 + ... + 90982115.

It is an arithmetic number, because the mean of its divisors is an integer number (18423620910).

Almost surely, 2^231455265864 is an apocalyptic number.

231455265864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

231455265864 is an abundant number, since it is smaller than the sum of its proper divisors (358100603256).

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

231455265864 is a wasteful number, since it uses less digits than its factorization.

231455265864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181961749 (or 181961745 counting only the distinct ones).

The product of its digits is 6912000, while the sum is 51.

The spelling of 231455265864 in words is "two hundred thirty-one billion, four hundred fifty-five million, two hundred sixty-five thousand, eight hundred sixty-four".