722370173512 has 128 divisors (see below), whose sum is σ = 1535518908000. Its totient is φ = 316245565440.

The previous prime is 722370173509. The next prime is 722370173521. The reversal of 722370173512 is 215371073227.

It can be written as a sum of positive squares in 16 ways, for example, as 95761778116 + 626608395396 = 309454^2 + 791586^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 196668508 + ... + 196672180.

Almost surely, 2^722370173512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 722370173512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (767759454000).

722370173512 is an abundant number, since it is smaller than the sum of its proper divisors (813148734488).

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

722370173512 is a wasteful number, since it uses less digits than its factorization.

722370173512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4851 (or 4847 counting only the distinct ones).

The product of its (nonzero) digits is 123480, while the sum is 40.

The spelling of 722370173512 in words is "seven hundred twenty-two billion, three hundred seventy million, one hundred seventy-three thousand, five hundred twelve".