231256924704 has 144 divisors (see below), whose sum is σ = 749884793112. Its totient is φ = 66970312704.

The previous prime is 231256924693. The next prime is 231256924739. The reversal of 231256924704 is 407429652132.

231256924704 is a `hidden beast` number, since 2 + 3 + 12 + 569 + 2 + 4 + 70 + 4 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 109860428304 + 121396496400 = 331452^2 + 348420^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 231256924704.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1753039 + ... + 1880334.

Almost surely, 2^231256924704 is an apocalyptic number.

231256924704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

231256924704 is an abundant number, since it is smaller than the sum of its proper divisors (518627868408).

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

231256924704 is a wasteful number, since it uses less digits than its factorization.

231256924704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3633419 (or 3633408 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

It can be divided in two parts, 231256 and 924704, that added together give a triangular number (1155960 = T₁₅₂₀).

The spelling of 231256924704 in words is "two hundred thirty-one billion, two hundred fifty-six million, nine hundred twenty-four thousand, seven hundred four".