131985968492 has 24 divisors (see below), whose sum is σ = 264016806144. Its totient is φ = 56555800272.

The previous prime is 131985968459. The next prime is 131985968581. The reversal of 131985968492 is 294869589131.

It is a Smith number, since the sum of its digits (65) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231698 + ... + 563609.

It is an arithmetic number, because the mean of its divisors is an integer number (11000700256).

Almost surely, 2^131985968492 is an apocalyptic number.

It is an amenable number.

131985968492 is an abundant number, since it is smaller than the sum of its proper divisors (132030837652).

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

131985968492 is a wasteful number, since it uses less digits than its factorization.

131985968492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801245 (or 801243 counting only the distinct ones).

The product of its digits is 33592320, while the sum is 65.

The spelling of 131985968492 in words is "one hundred thirty-one billion, nine hundred eighty-five million, nine hundred sixty-eight thousand, four hundred ninety-two".