86388556799 has 4 divisors (see below), whose sum is σ = 86389367064. Its totient is φ = 86387746536.

The previous prime is 86388556781. The next prime is 86388556867. The reversal of 86388556799 is 99765588368.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 86388556799 - 2²⁸ = 86120121343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86388556699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215672 + ... + 468285.

It is an arithmetic number, because the mean of its divisors is an integer number (21597341766).

Almost surely, 2^86388556799 is an apocalyptic number.

86388556799 is a deficient number, since it is larger than the sum of its proper divisors (810265).

86388556799 is a wasteful number, since it uses less digits than its factorization.

86388556799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810264.

The product of its digits is 783820800, while the sum is 74.

The spelling of 86388556799 in words is "eighty-six billion, three hundred eighty-eight million, five hundred fifty-six thousand, seven hundred ninety-nine".