86181932044 has 96 divisors (see below), whose sum is σ = 169179422720. Its totient is φ = 38145945600.

The previous prime is 86181932041. The next prime is 86181932071. The reversal of 86181932044 is 44023918168.

It is a junction number, because it is equal to n+sod(n) for n = 86181931985 and 86181932003.

It is not an unprimeable number, because it can be changed into a prime (86181932041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 136579609 + ... + 136580239.

Almost surely, 2^86181932044 is an apocalyptic number.

It is an amenable number.

86181932044 is a deficient number, since it is larger than the sum of its proper divisors (82997490676).

86181932044 is a wasteful number, since it uses less digits than its factorization.

86181932044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311 (or 1309 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 46.

The spelling of 86181932044 in words is "eighty-six billion, one hundred eighty-one million, nine hundred thirty-two thousand, forty-four".