7921793320 has 64 divisors (see below), whose sum is σ = 21027456000. Its totient is φ = 2628426240.

The previous prime is 7921793303. The next prime is 7921793359. The reversal of 7921793320 is 233971297.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 447645 + ... + 465004.

It is an arithmetic number, because the mean of its divisors is an integer number (328554000).

Almost surely, 2^7921793320 is an apocalyptic number.

7921793320 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7921793320 is an abundant number, since it is smaller than the sum of its proper divisors (13105662680).

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

7921793320 is a wasteful number, since it uses less digits than its factorization.

7921793320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912698 (or 912694 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 43.

The square root of 7921793320 is about 89004.4567423452. The cubic root of 7921793320 is about 1993.4614234705.

The spelling of 7921793320 in words is "seven billion, nine hundred twenty-one million, seven hundred ninety-three thousand, three hundred twenty".