131808988630 has 32 divisors (see below), whose sum is σ = 258839919360. Its totient is φ = 47927764320.

The previous prime is 131808988561. The next prime is 131808988637. The reversal of 131808988630 is 36889808131.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131808988637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3514437 + ... + 3551743.

It is an arithmetic number, because the mean of its divisors is an integer number (8088747480).

Almost surely, 2^131808988630 is an apocalyptic number.

131808988630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131808988630 is a deficient number, since it is larger than the sum of its proper divisors (127030930730).

131808988630 is a wasteful number, since it uses less digits than its factorization.

131808988630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69444.

The product of its (nonzero) digits is 1990656, while the sum is 55.

The spelling of 131808988630 in words is "one hundred thirty-one billion, eight hundred eight million, nine hundred eighty-eight thousand, six hundred thirty".