131309398458 has 48 divisors (see below), whose sum is σ = 339439268160. Its totient is φ = 37516970232.

The previous prime is 131309398447. The next prime is 131309398481. The reversal of 131309398458 is 854893903131.

131309398458 is a `hidden beast` number, since 1 + 3 + 13 + 0 + 93 + 98 + 458 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24810166 + ... + 24815457.

It is an arithmetic number, because the mean of its divisors is an integer number (7071651420).

Almost surely, 2^131309398458 is an apocalyptic number.

131309398458 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

131309398458 is an abundant number, since it is smaller than the sum of its proper divisors (208129869702).

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

131309398458 is a wasteful number, since it uses less digits than its factorization.

131309398458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49625648 (or 49625635 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The spelling of 131309398458 in words is "one hundred thirty-one billion, three hundred nine million, three hundred ninety-eight thousand, four hundred fifty-eight".