722311528896 has 448 divisors, whose sum is σ = 2194146447360. Its totient is φ = 232931635200.

The previous prime is 722311528877. The next prime is 722311528943. The reversal of 722311528896 is 698825113227.

722311528896 is a `hidden beast` number, since 7 + 2 + 2 + 31 + 1 + 528 + 89 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2607622710 + ... + 2607622986.

It is an arithmetic number, because the mean of its divisors is an integer number (4897648320).

Almost surely, 2^722311528896 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 722311528896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1097073223680).

722311528896 is an abundant number, since it is smaller than the sum of its proper divisors (1471834918464).

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

722311528896 is a wasteful number, since it uses less digits than its factorization.

722311528896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689 (or 673 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The spelling of 722311528896 in words is "seven hundred twenty-two billion, three hundred eleven million, five hundred twenty-eight thousand, eight hundred ninety-six".