86641031239 has 6 divisors (see below), whose sum is σ = 100786505784. Its totient is φ = 74263741020.

The previous prime is 86641031227. The next prime is 86641031249. The reversal of 86641031239 is 93213014668.

It is not a de Polignac number, because 86641031239 - 2⁵ = 86641031207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86641031195 and 86641031204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86641031249) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 884092107 + ... + 884092204.

It is an arithmetic number, because the mean of its divisors is an integer number (16797750964).

Almost surely, 2^86641031239 is an apocalyptic number.

86641031239 is a deficient number, since it is larger than the sum of its proper divisors (14145474545).

86641031239 is a wasteful number, since it uses less digits than its factorization.

86641031239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1768184325 (or 1768184318 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 43.

The spelling of 86641031239 in words is "eighty-six billion, six hundred forty-one million, thirty-one thousand, two hundred thirty-nine".