7947356916 has 24 divisors (see below), whose sum is σ = 18560767680. Its totient is φ = 2646699712.

The previous prime is 7947356903. The next prime is 7947356969. The reversal of 7947356916 is 6196537497.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288696 + ... + 315023.

It is an arithmetic number, because the mean of its divisors is an integer number (773365320).

Almost surely, 2^7947356916 is an apocalyptic number.

It is an amenable number.

7947356916 is an abundant number, since it is smaller than the sum of its proper divisors (10613410764).

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

7947356916 is a wasteful number, since it uses less digits than its factorization.

7947356916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604823 (or 604821 counting only the distinct ones).

The product of its digits is 8573040, while the sum is 57.

The square root of 7947356916 is about 89147.9495894325. The cubic root of 7947356916 is about 1995.6034184508.

The spelling of 7947356916 in words is "seven billion, nine hundred forty-seven million, three hundred fifty-six thousand, nine hundred sixteen".