720404710206736 has 45 divisors (see below), whose sum is σ = 1459113927061399. Its totient is φ = 344540202166688.

The previous prime is 720404710206703. The next prime is 720404710206793. The reversal of 720404710206736 is 637602017404027.

The square root of 720404710206736 is 26840356.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 720404710206736.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2469166881 + ... + 2469458623.

Almost surely, 2^{720404710206736} is an apocalyptic number.

720404710206736 is the 26840356-th square number.

It is an amenable number.

720404710206736 is an abundant number, since it is smaller than the sum of its proper divisors (738709216854663).

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

720404710206736 is an frugal number, since it uses more digits than its factorization.

720404710206736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583540 (or 291768 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 49.

The spelling of 720404710206736 in words is "seven hundred twenty trillion, four hundred four billion, seven hundred ten million, two hundred six thousand, seven hundred thirty-six".