7917612108 has 48 divisors (see below), whose sum is σ = 21213744384. Its totient is φ = 2251448640.

The previous prime is 7917612061. The next prime is 7917612119. The reversal of 7917612108 is 8012167197.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 7917612108.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 205635 + ... + 241082.

It is an arithmetic number, because the mean of its divisors is an integer number (441953008).

Almost surely, 2^7917612108 is an apocalyptic number.

It is an amenable number.

7917612108 is an abundant number, since it is smaller than the sum of its proper divisors (13296132276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7917612108 is a wasteful number, since it uses less digits than its factorization.

7917612108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446942 (or 446940 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 42.

The square root of 7917612108 is about 88980.9648632785. The cubic root of 7917612108 is about 1993.1106379278.

The spelling of 7917612108 in words is "seven billion, nine hundred seventeen million, six hundred twelve thousand, one hundred eight".