131185678764 has 24 divisors (see below), whose sum is σ = 349828476928. Its totient is φ = 37481622480.

The previous prime is 131185678721. The next prime is 131185678787. The reversal of 131185678764 is 467876581131.

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 7 ways as a sum of consecutive naturals, for example, 780867052 + ... + 780867219.

Almost surely, 2^131185678764 is an apocalyptic number.

131185678764 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

131185678764 is an abundant number, since it is smaller than the sum of its proper divisors (218642798164).

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

131185678764 is a wasteful number, since it uses less digits than its factorization.

131185678764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561734285 (or 1561734283 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 57.

The spelling of 131185678764 in words is "one hundred thirty-one billion, one hundred eighty-five million, six hundred seventy-eight thousand, seven hundred sixty-four".