7856415168 has 56 divisors (see below), whose sum is σ = 23756307072. Its totient is φ = 2244689664.

The previous prime is 7856415137. The next prime is 7856415169. The reversal of 7856415168 is 8615146587.

It is a tau number, because it is divible by the number of its divisors (56).

It is a self number, because there is not a number n which added to its sum of digits gives 7856415168.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7856415169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2921430 + ... + 2924117.

Almost surely, 2^7856415168 is an apocalyptic number.

It is an amenable number.

7856415168 is an abundant number, since it is smaller than the sum of its proper divisors (15899891904).

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

7856415168 is a wasteful number, since it uses less digits than its factorization.

7856415168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5845569 (or 5845559 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 51.

The square root of 7856415168 is about 88636.4212273939. The cubic root of 7856415168 is about 1987.9622894576.

The spelling of 7856415168 in words is "seven billion, eight hundred fifty-six million, four hundred fifteen thousand, one hundred sixty-eight".