721901339360 has 48 divisors (see below), whose sum is σ = 1705610689776. Its totient is φ = 288740425728.

The previous prime is 721901339281. The next prime is 721901339377. The reversal of 721901339360 is 63933109127.

It is a happy number.

It is a super-2 number, since 2×721901339360² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2263712 + ... + 2562848.

It is an arithmetic number, because the mean of its divisors is an integer number (35533556037).

Almost surely, 2^721901339360 is an apocalyptic number.

It is an amenable number.

721901339360 is an abundant number, since it is smaller than the sum of its proper divisors (983709350416).

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

721901339360 is a wasteful number, since it uses less digits than its factorization.

721901339360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314235 (or 314227 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 44.

The spelling of 721901339360 in words is "seven hundred twenty-one billion, nine hundred one million, three hundred thirty-nine thousand, three hundred sixty".