7799785880 has 32 divisors (see below), whose sum is σ = 17977559040. Its totient is φ = 3043818240.

The previous prime is 7799785879. The next prime is 7799785897. The reversal of 7799785880 is 885879977.

It is a self number, because there is not a number n which added to its sum of digits gives 7799785880.

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, 2376344 + ... + 2379623.

It is an arithmetic number, because the mean of its divisors is an integer number (561798720).

Almost surely, 2^7799785880 is an apocalyptic number.

It is an amenable number.

7799785880 is an abundant number, since it is smaller than the sum of its proper divisors (10177773160).

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

7799785880 is a wasteful number, since it uses less digits than its factorization.

7799785880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4756019 (or 4756015 counting only the distinct ones).

The product of its (nonzero) digits is 71124480, while the sum is 68.

The square root of 7799785880 is about 88316.3964391664. The cubic root of 7799785880 is about 1983.1743354560.

The spelling of 7799785880 in words is "seven billion, seven hundred ninety-nine million, seven hundred eighty-five thousand, eight hundred eighty".