722037889920 has 512 divisors, whose sum is σ = 2390335401600. Its totient is φ = 185299107840.

The previous prime is 722037889907. The next prime is 722037889967. The reversal of 722037889920 is 29988730227.

It is a happy number.

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 63 ways as a sum of consecutive naturals, for example, 1177875534 + ... + 1177876146.

Almost surely, 2^722037889920 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 722037889920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1195167700800).

722037889920 is an abundant number, since it is smaller than the sum of its proper divisors (1668297511680).

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

722037889920 is a wasteful number, since it uses less digits than its factorization.

722037889920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898 (or 886 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 57.

The spelling of 722037889920 in words is "seven hundred twenty-two billion, thirty-seven million, eight hundred eighty-nine thousand, nine hundred twenty".