8122415091 has 32 divisors (see below), whose sum is σ = 13556989440. Its totient is φ = 4217719296.

The previous prime is 8122415083. The next prime is 8122415107. The reversal of 8122415091 is 1905142218.

It is not a de Polignac number, because 8122415091 - 2³ = 8122415083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8122415011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 381921 + ... + 402626.

It is an arithmetic number, because the mean of its divisors is an integer number (423655920).

Almost surely, 2^8122415091 is an apocalyptic number.

8122415091 is a deficient number, since it is larger than the sum of its proper divisors (5434574349).

8122415091 is a wasteful number, since it uses less digits than its factorization.

8122415091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784603.

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 8122415091 is about 90124.4422507013. The cubic root of 8122415091 is about 2010.1496626264.

The spelling of 8122415091 in words is "eight billion, one hundred twenty-two million, four hundred fifteen thousand, ninety-one".