86597679494 has 4 divisors (see below), whose sum is σ = 129896519244. Its totient is φ = 43298839746.

The previous prime is 86597679479. The next prime is 86597679503. The reversal of 86597679494 is 49497679568.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21649419872 + ... + 21649419875.

It is an arithmetic number, because the mean of its divisors is an integer number (32474129811).

Almost surely, 2^86597679494 is an apocalyptic number.

86597679494 is a deficient number, since it is larger than the sum of its proper divisors (43298839750).

86597679494 is a wasteful number, since it uses less digits than its factorization.

86597679494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43298839749.

The product of its digits is 823011840, while the sum is 74.

Adding to 86597679494 its sum of digits (74), we get a palindrome (86597679568).

The spelling of 86597679494 in words is "eighty-six billion, five hundred ninety-seven million, six hundred seventy-nine thousand, four hundred ninety-four".