86539297131 has 128 divisors (see below), whose sum is σ = 157925376000. Its totient is φ = 45735850368.

The previous prime is 86539297129. The next prime is 86539297171. The reversal of 86539297131 is 13179293568.

86539297131 is a `hidden beast` number, since 8 + 6 + 539 + 2 + 9 + 71 + 31 = 666.

It is not a de Polignac number, because 86539297131 - 2¹ = 86539297129 is a prime.

It is a super-2 number, since 2×86539297131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86539297111) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 42441010 + ... + 42443048.

It is an arithmetic number, because the mean of its divisors is an integer number (1233792000).

Almost surely, 2^86539297131 is an apocalyptic number.

86539297131 is a deficient number, since it is larger than the sum of its proper divisors (71386078869).

86539297131 is a wasteful number, since it uses less digits than its factorization.

86539297131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2350 (or 2344 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 54.

The spelling of 86539297131 in words is "eighty-six billion, five hundred thirty-nine million, two hundred ninety-seven thousand, one hundred thirty-one".