721812441495360 has 224 divisors, whose sum is σ = 2459804191270272. Its totient is φ = 178679114956800.

The previous prime is 721812441495283. The next prime is 721812441495389. The reversal of 721812441495360 is 63594144218127.

It is a self number, because there is not a number n which added to its sum of digits gives 721812441495360.

It is a congruent number.

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, 301744966 + ... + 304127685.

It is an arithmetic number, because the mean of its divisors is an integer number (10981268711028).

It is a 1-persistent number, because it is pandigital, but 2⋅721812441495360 = 1443624882990720 is not.

Almost surely, 2^{721812441495360} is an apocalyptic number.

It is an amenable number.

721812441495360 is an abundant number, since it is smaller than the sum of its proper divisors (1737991749774912).

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

721812441495360 is a wasteful number, since it uses less digits than its factorization.

721812441495360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605872761 (or 605872751 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 57.

The spelling of 721812441495360 in words is "seven hundred twenty-one trillion, eight hundred twelve billion, four hundred forty-one million, four hundred ninety-five thousand, three hundred sixty".