86949900139 has 16 divisors (see below), whose sum is σ = 89988927840. Its totient is φ = 83966664960.

The previous prime is 86949900091. The next prime is 86949900181. The reversal of 86949900139 is 93100994968.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86949900139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86949900199) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2853247 + ... + 2883559.

It is an arithmetic number, because the mean of its divisors is an integer number (5624307990).

Almost surely, 2^86949900139 is an apocalyptic number.

86949900139 is a deficient number, since it is larger than the sum of its proper divisors (3039027701).

86949900139 is a wasteful number, since it uses less digits than its factorization.

86949900139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31230.

The product of its (nonzero) digits is 3779136, while the sum is 58.

The spelling of 86949900139 in words is "eighty-six billion, nine hundred forty-nine million, nine hundred thousand, one hundred thirty-nine".