722200918648 has 32 divisors (see below), whose sum is σ = 1479929852160. Its totient is φ = 327672989280.

The previous prime is 722200918603. The next prime is 722200918661. The reversal of 722200918648 is 846819002227.

It is a super-2 number, since 2×722200918648² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7453536 + ... + 7549807.

It is an arithmetic number, because the mean of its divisors is an integer number (46247807880).

Almost surely, 2^722200918648 is an apocalyptic number.

It is an amenable number.

722200918648 is an abundant number, since it is smaller than the sum of its proper divisors (757728933512).

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

722200918648 is a wasteful number, since it uses less digits than its factorization.

722200918648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15003907 (or 15003903 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 49.

The spelling of 722200918648 in words is "seven hundred twenty-two billion, two hundred million, nine hundred eighteen thousand, six hundred forty-eight".