8115900791 has 4 divisors (see below), whose sum is σ = 8116229184. Its totient is φ = 8115572400.

The previous prime is 8115900743. The next prime is 8115900823. The reversal of 8115900791 is 1970095118.

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 8115900791 - 2¹⁰ = 8115899767 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 (8115900721) 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, 123815 + ... + 177656.

It is an arithmetic number, because the mean of its divisors is an integer number (2029057296).

Almost surely, 2^8115900791 is an apocalyptic number.

8115900791 is a deficient number, since it is larger than the sum of its proper divisors (328393).

8115900791 is a wasteful number, since it uses less digits than its factorization.

8115900791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328392.

The product of its (nonzero) digits is 22680, while the sum is 41.

The square root of 8115900791 is about 90088.2944171994. The cubic root of 8115900791 is about 2009.6121287328.

The spelling of 8115900791 in words is "eight billion, one hundred fifteen million, nine hundred thousand, seven hundred ninety-one".