231488139264 has 52 divisors (see below), whose sum is σ = 617226383256. Its totient is φ = 77162708992.

The previous prime is 231488139251. The next prime is 231488139271. The reversal of 231488139264 is 462931884132.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9406989 + ... + 9431564.

Almost surely, 2^231488139264 is an apocalyptic number.

231488139264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

231488139264 is an abundant number, since it is smaller than the sum of its proper divisors (385738243992).

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

231488139264 is an equidigital number, since it uses as much as digits as its factorization.

231488139264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18838580 (or 18838558 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 51.

The spelling of 231488139264 in words is "two hundred thirty-one billion, four hundred eighty-eight million, one hundred thirty-nine thousand, two hundred sixty-four".