8613319655 has 4 divisors (see below), whose sum is σ = 10335983592. Its totient is φ = 6890655720.

The previous prime is 8613319643. The next prime is 8613319669. The reversal of 8613319655 is 5569133168.

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

It is not a de Polignac number, because 8613319655 - 2²⁰ = 8612271079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 861331961 + ... + 861331970.

It is an arithmetic number, because the mean of its divisors is an integer number (2583995898).

Almost surely, 2^8613319655 is an apocalyptic number.

8613319655 is a deficient number, since it is larger than the sum of its proper divisors (1722663937).

8613319655 is a wasteful number, since it uses less digits than its factorization.

8613319655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1722663936.

The product of its digits is 583200, while the sum is 47.

The square root of 8613319655 is about 92807.9719366822. The cubic root of 8613319655 is about 2049.8567938829.

The spelling of 8613319655 in words is "eight billion, six hundred thirteen million, three hundred nineteen thousand, six hundred fifty-five".