7799856738 has 16 divisors (see below), whose sum is σ = 16277962176. Its totient is φ = 2486910800.

The previous prime is 7799856719. The next prime is 7799856767. The reversal of 7799856738 is 8376589977.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is a Curzon 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, 28260213 + ... + 28260488.

It is an arithmetic number, because the mean of its divisors is an integer number (1017372636).

Almost surely, 2^7799856738 is an apocalyptic number.

7799856738 is an abundant number, since it is smaller than the sum of its proper divisors (8478105438).

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

7799856738 is a wasteful number, since it uses less digits than its factorization.

7799856738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56520729.

The product of its digits is 160030080, while the sum is 69.

The square root of 7799856738 is about 88316.7975981919. The cubic root of 7799856738 is about 1983.1803408918.

The spelling of 7799856738 in words is "seven billion, seven hundred ninety-nine million, eight hundred fifty-six thousand, seven hundred thirty-eight".