76813922159 has 4 divisors (see below), whose sum is σ = 82722685416. Its totient is φ = 70905158904.

The previous prime is 76813922137. The next prime is 76813922179. The reversal of 76813922159 is 95122931867.

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

It is a cyclic number.

It is not a de Polignac number, because 76813922159 - 2³² = 72518954863 is a prime.

It is a super-2 number, since 2×76813922159² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 76813922159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76813922179) 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, 2954381609 + ... + 2954381634.

It is an arithmetic number, because the mean of its divisors is an integer number (20680671354).

Almost surely, 2^76813922159 is an apocalyptic number.

76813922159 is a deficient number, since it is larger than the sum of its proper divisors (5908763257).

76813922159 is a wasteful number, since it uses less digits than its factorization.

76813922159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5908763256.

The product of its digits is 1632960, while the sum is 53.

The spelling of 76813922159 in words is "seventy-six billion, eight hundred thirteen million, nine hundred twenty-two thousand, one hundred fifty-nine".