131863558720 has 28 divisors (see below), whose sum is σ = 314000099964. Its totient is φ = 52745423360.

The previous prime is 131863558693. The next prime is 131863558733. The reversal of 131863558720 is 27855368131.

It can be written as a sum of positive squares in 2 ways, for example, as 73276324416 + 58587234304 = 270696^2 + 242048^2 .

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 3 ways as a sum of consecutive naturals, for example, 206036491 + ... + 206037130.

Almost surely, 2^131863558720 is an apocalyptic number.

131863558720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131863558720 is an abundant number, since it is smaller than the sum of its proper divisors (182136541244).

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

131863558720 is an equidigital number, since it uses as much as digits as its factorization.

131863558720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412073638 (or 412073628 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 49.

The spelling of 131863558720 in words is "one hundred thirty-one billion, eight hundred sixty-three million, five hundred fifty-eight thousand, seven hundred twenty".