501722952864 has 288 divisors, whose sum is σ = 1580100673536. Its totient is φ = 138906109440.

The previous prime is 501722952847. The next prime is 501722952883. The reversal of 501722952864 is 468259227105.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25678779 + ... + 25698309.

It is an arithmetic number, because the mean of its divisors is an integer number (5486460672).

Almost surely, 2^501722952864 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 501722952864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (790050336768).

501722952864 is an abundant number, since it is smaller than the sum of its proper divisors (1078377720672).

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

501722952864 is a wasteful number, since it uses less digits than its factorization.

501722952864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19728 (or 19713 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 51.

The spelling of 501722952864 in words is "five hundred one billion, seven hundred twenty-two million, nine hundred fifty-two thousand, eight hundred sixty-four".