7721333823480 has 128 divisors (see below), whose sum is σ = 23202939110400. Its totient is φ = 2055562578432.

The previous prime is 7721333823479. The next prime is 7721333823481. The reversal of 7721333823480 is 843283331277.

It is an interprime number because it is at equal distance from previous prime (7721333823479) and next prime (7721333823481).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7721333823481) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 579368577 + ... + 579381903.

It is an arithmetic number, because the mean of its divisors is an integer number (181272961800).

Almost surely, 2^{7721333823480} is an apocalyptic number.

It is an amenable number.

7721333823480 is an abundant number, since it is smaller than the sum of its proper divisors (15481605286920).

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

7721333823480 is a wasteful number, since it uses less digits than its factorization.

7721333823480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21093 (or 21089 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 51.

The spelling of 7721333823480 in words is "seven trillion, seven hundred twenty-one billion, three hundred thirty-three million, eight hundred twenty-three thousand, four hundred eighty".