86181357325631 has 16 divisors (see below), whose sum is σ = 90042246302400. Its totient is φ = 82329975974400.

The previous prime is 86181357325621. The next prime is 86181357325667. The reversal of 86181357325631 is 13652375318168.

It is not a de Polignac number, because 86181357325631 - 2²⁶ = 86181290216767 is a prime.

It is a super-2 number, since 2×86181357325631² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86181357325601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214607831 + ... + 215009031.

It is an arithmetic number, because the mean of its divisors is an integer number (5627640393900).

Almost surely, 2^{86181357325631} is an apocalyptic number.

86181357325631 is a deficient number, since it is larger than the sum of its proper divisors (3860888976769).

86181357325631 is a wasteful number, since it uses less digits than its factorization.

86181357325631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413026.

The product of its digits is 21772800, while the sum is 59.

The spelling of 86181357325631 in words is "eighty-six trillion, one hundred eighty-one billion, three hundred fifty-seven million, three hundred twenty-five thousand, six hundred thirty-one".