86731475092 has 12 divisors (see below), whose sum is σ = 160708321620. Its totient is φ = 40814811776.

The previous prime is 86731475069. The next prime is 86731475093. The reversal of 86731475092 is 29057413768.

It can be written as a sum of positive squares in 2 ways, for example, as 33187366276 + 53544108816 = 182174^2 + 231396^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86731475093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 637731367 + ... + 637731502.

It is an arithmetic number, because the mean of its divisors is an integer number (13392360135).

It is a 2-persistent number, because it is pandigital, and so is 2⋅86731475092 = 173462950184, but 3⋅86731475092 = 260194425276 is not.

Almost surely, 2^86731475092 is an apocalyptic number.

It is an amenable number.

86731475092 is a deficient number, since it is larger than the sum of its proper divisors (73976846528).

86731475092 is a wasteful number, since it uses less digits than its factorization.

86731475092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275462890 (or 1275462888 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 52.

The spelling of 86731475092 in words is "eighty-six billion, seven hundred thirty-one million, four hundred seventy-five thousand, ninety-two".