86613431667 has 16 divisors (see below), whose sum is σ = 132342008832. Its totient is φ = 49358525760.

The previous prime is 86613431659. The next prime is 86613431743. The reversal of 86613431667 is 76613431668.

It is a happy number.

It is not a de Polignac number, because 86613431667 - 2³ = 86613431659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86613431627) 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, 5611434 + ... + 5626847.

It is an arithmetic number, because the mean of its divisors is an integer number (8271375552).

Almost surely, 2^86613431667 is an apocalyptic number.

86613431667 is a deficient number, since it is larger than the sum of its proper divisors (45728577165).

86613431667 is a wasteful number, since it uses less digits than its factorization.

86613431667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11238658.

The product of its digits is 2612736, while the sum is 51.

Subtracting from 86613431667 its reverse (76613431668), we obtain a palindrome (9999999999).

The spelling of 86613431667 in words is "eighty-six billion, six hundred thirteen million, four hundred thirty-one thousand, six hundred sixty-seven".