231811949488 has 60 divisors (see below), whose sum is σ = 536584635552. Its totient is φ = 96662885760.

The previous prime is 231811949483. The next prime is 231811949503. The reversal of 231811949488 is 884949118132.

231811949488 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (231811949483) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 3966648 + ... + 4024663.

Almost surely, 2^231811949488 is an apocalyptic number.

231811949488 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

231811949488 is an abundant number, since it is smaller than the sum of its proper divisors (304772686064).

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

231811949488 is a wasteful number, since it uses less digits than its factorization.

231811949488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7991370 (or 7991357 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 58.

The spelling of 231811949488 in words is "two hundred thirty-one billion, eight hundred eleven million, nine hundred forty-nine thousand, four hundred eighty-eight".