722847835728 has 40 divisors (see below), whose sum is σ = 2074841011200. Its totient is φ = 240949278432.

The previous prime is 722847835711. The next prime is 722847835729. The reversal of 722847835728 is 827538748227.

722847835728 is a `hidden beast` number, since 72 + 28 + 478 + 3 + 5 + 72 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722847835729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 836629008 + ... + 836629871.

It is an arithmetic number, because the mean of its divisors is an integer number (51871025280).

Almost surely, 2^722847835728 is an apocalyptic number.

It is an amenable number.

722847835728 is an abundant number, since it is smaller than the sum of its proper divisors (1351993175472).

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

722847835728 is a wasteful number, since it uses less digits than its factorization.

722847835728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1673258896 (or 1673258884 counting only the distinct ones).

The product of its digits is 84295680, while the sum is 63.

The spelling of 722847835728 in words is "seven hundred twenty-two billion, eight hundred forty-seven million, eight hundred thirty-five thousand, seven hundred twenty-eight".