8107122987 has 24 divisors (see below), whose sum is σ = 12004273008. Its totient is φ = 5269248000.

The previous prime is 8107122983. The next prime is 8107123019. The reversal of 8107122987 is 7892217018.

It is not a de Polignac number, because 8107122987 - 2² = 8107122983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8107122983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 583908 + ... + 597630.

It is an arithmetic number, because the mean of its divisors is an integer number (500178042).

Almost surely, 2^8107122987 is an apocalyptic number.

8107122987 is a deficient number, since it is larger than the sum of its proper divisors (3897150021).

8107122987 is a wasteful number, since it uses less digits than its factorization.

8107122987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15371 (or 15368 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 45.

The square root of 8107122987 is about 90039.5634540728. The cubic root of 8107122987 is about 2008.8873644622.

The spelling of 8107122987 in words is "eight billion, one hundred seven million, one hundred twenty-two thousand, nine hundred eighty-seven".