721910058240 has 576 divisors, whose sum is σ = 2688281358336. Its totient is φ = 161699659776.

The previous prime is 721910058169. The next prime is 721910058271. The reversal of 721910058240 is 42850019127.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 327692979 + ... + 327695181.

It is an arithmetic number, because the mean of its divisors is an integer number (4667155136).

Almost surely, 2^721910058240 is an apocalyptic number.

721910058240 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 721910058240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1344140679168).

721910058240 is an abundant number, since it is smaller than the sum of its proper divisors (1966371300096).

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

721910058240 is a wasteful number, since it uses less digits than its factorization.

721910058240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2474 (or 2460 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 39.

The spelling of 721910058240 in words is "seven hundred twenty-one billion, nine hundred ten million, fifty-eight thousand, two hundred forty".