131263387864 has 64 divisors (see below), whose sum is σ = 283616467200. Its totient is φ = 55789893504.

The previous prime is 131263387831. The next prime is 131263387877. The reversal of 131263387864 is 468783362131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3721399 + ... + 3756505.

It is an arithmetic number, because the mean of its divisors is an integer number (4431507300).

Almost surely, 2^131263387864 is an apocalyptic number.

131263387864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

131263387864 is an abundant number, since it is smaller than the sum of its proper divisors (152353079336).

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

131263387864 is a wasteful number, since it uses less digits than its factorization.

131263387864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35672 (or 35668 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 52.

The spelling of 131263387864 in words is "one hundred thirty-one billion, two hundred sixty-three million, three hundred eighty-seven thousand, eight hundred sixty-four".