86343838491 has 32 divisors (see below), whose sum is σ = 122758530048. Its totient is φ = 53794411520.

The previous prime is 86343838481. The next prime is 86343838519. The reversal of 86343838491 is 19483834368.

It is a cyclic number.

It is not a de Polignac number, because 86343838491 - 2¹⁰ = 86343837467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86343838481) 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, 8776111 + ... + 8785943.

It is an arithmetic number, because the mean of its divisors is an integer number (3836204064).

Almost surely, 2^86343838491 is an apocalyptic number.

86343838491 is a deficient number, since it is larger than the sum of its proper divisors (36414691557).

86343838491 is a wasteful number, since it uses less digits than its factorization.

86343838491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11051.

The product of its digits is 11943936, while the sum is 57.

The spelling of 86343838491 in words is "eighty-six billion, three hundred forty-three million, eight hundred thirty-eight thousand, four hundred ninety-one".