86739884399 has 16 divisors (see below), whose sum is σ = 99274152000. Its totient is φ = 74241425664.

The previous prime is 86739884389. The next prime is 86739884401. The reversal of 86739884399 is 99348893768.

It is a de Polignac number, because none of the positive numbers 2^k-86739884399 is a prime.

It is a Smith number, since the sum of its digits (74) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86739884389) 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, 18655427 + ... + 18660075.

It is an arithmetic number, because the mean of its divisors is an integer number (6204634500).

Almost surely, 2^86739884399 is an apocalyptic number.

86739884399 is a deficient number, since it is larger than the sum of its proper divisors (12534267601).

86739884399 is a wasteful number, since it uses less digits than its factorization.

86739884399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7922.

The product of its digits is 564350976, while the sum is 74.

The spelling of 86739884399 in words is "eighty-six billion, seven hundred thirty-nine million, eight hundred eighty-four thousand, three hundred ninety-nine".