131957795639 has 6 divisors (see below), whose sum is σ = 133135910856. Its totient is φ = 130790014880.

The previous prime is 131957795569. The next prime is 131957795653. The reversal of 131957795639 is 936597759131.

It is a de Polignac number, because none of the positive numbers 2^k-131957795639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131957795839) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5154347 + ... + 5179884.

It is an arithmetic number, because the mean of its divisors is an integer number (22189318476).

Almost surely, 2^131957795639 is an apocalyptic number.

131957795639 is a deficient number, since it is larger than the sum of its proper divisors (1178115217).

131957795639 is an equidigital number, since it uses as much as digits as its factorization.

131957795639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10334457 (or 10334344 counting only the distinct ones).

The product of its digits is 48223350, while the sum is 65.

The spelling of 131957795639 in words is "one hundred thirty-one billion, nine hundred fifty-seven million, seven hundred ninety-five thousand, six hundred thirty-nine".