86156393091 has 16 divisors (see below), whose sum is σ = 123694128000. Its totient is φ = 53142658688.

The previous prime is 86156393077. The next prime is 86156393131. The reversal of 86156393091 is 19039365168.

It is a cyclic number.

It is not a de Polignac number, because 86156393091 - 2⁶ = 86156393027 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (86156373091) 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, 14313441 + ... + 14319458.

It is an arithmetic number, because the mean of its divisors is an integer number (7730883000).

Almost surely, 2^86156393091 is an apocalyptic number.

86156393091 is a deficient number, since it is larger than the sum of its proper divisors (37537734909).

86156393091 is a wasteful number, since it uses less digits than its factorization.

86156393091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28632978.

The product of its (nonzero) digits is 1049760, while the sum is 51.

The spelling of 86156393091 in words is "eighty-six billion, one hundred fifty-six million, three hundred ninety-three thousand, ninety-one".