720919568 has 40 divisors (see below), whose sum is σ = 1430908416. Its totient is φ = 351728000.

The previous prime is 720919519. The next prime is 720919571. The reversal of 720919568 is 865919027.

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 7 ways as a sum of consecutive naturals, for example, 159743 + ... + 164193.

Almost surely, 2^720919568 is an apocalyptic number.

It is an amenable number.

720919568 is a deficient number, since it is larger than the sum of its proper divisors (709988848).

720919568 is a wasteful number, since it uses less digits than its factorization.

720919568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4703 (or 4697 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 47.

The square root of 720919568 is about 26849.9454003169. The cubic root of 720919568 is about 896.6623570194.

The spelling of 720919568 in words is "seven hundred twenty million, nine hundred nineteen thousand, five hundred sixty-eight".