8107712091 has 80 divisors (see below), whose sum is σ = 13416480000. Its totient is φ = 4858709184.

The previous prime is 8107712051. The next prime is 8107712191. The reversal of 8107712091 is 1902177018.

It is not a de Polignac number, because 8107712091 - 2⁶ = 8107712027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8107712021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2631690 + ... + 2634768.

It is an arithmetic number, because the mean of its divisors is an integer number (167706000).

Almost surely, 2^8107712091 is an apocalyptic number.

8107712091 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

8107712091 is a deficient number, since it is larger than the sum of its proper divisors (5308767909).

8107712091 is a wasteful number, since it uses less digits than its factorization.

8107712091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3198 (or 3189 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 36.

The square root of 8107712091 is about 90042.8347565757. The cubic root of 8107712091 is about 2008.9360218762.

The spelling of 8107712091 in words is "eight billion, one hundred seven million, seven hundred twelve thousand, ninety-one".