7800938828 has 24 divisors (see below), whose sum is σ = 14095799424. Its totient is φ = 3773635200.

The previous prime is 7800938809. The next prime is 7800938857. The reversal of 7800938828 is 8288390087.

It is a self number, because there is not a number n which added to its sum of digits gives 7800938828.

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, 683408 + ... + 694728.

It is an arithmetic number, because the mean of its divisors is an integer number (587324976).

Almost surely, 2^7800938828 is an apocalyptic number.

It is an amenable number.

7800938828 is a deficient number, since it is larger than the sum of its proper divisors (6294860596).

7800938828 is a wasteful number, since it uses less digits than its factorization.

7800938828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16913 (or 16911 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 53.

The square root of 7800938828 is about 88322.9235702714. The cubic root of 7800938828 is about 1983.2720468661.

The spelling of 7800938828 in words is "seven billion, eight hundred million, nine hundred thirty-eight thousand, eight hundred twenty-eight".