720761430604530 has 64 divisors (see below), whose sum is σ = 1976948054823168. Its totient is φ = 164745268469760.

The previous prime is 720761430604529. The next prime is 720761430604541. The reversal of 720761430604530 is 35406034167027.

It is a self number, because there is not a number n which added to its sum of digits gives 720761430604530.

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, 232338850 + ... + 235420610.

It is an arithmetic number, because the mean of its divisors is an integer number (30889813356612).

Almost surely, 2^{720761430604530} is an apocalyptic number.

720761430604530 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

720761430604530 is an abundant number, since it is smaller than the sum of its proper divisors (1256186624218638).

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

720761430604530 is a wasteful number, since it uses less digits than its factorization.

720761430604530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4195491.

The product of its (nonzero) digits is 2540160, while the sum is 48.

The spelling of 720761430604530 in words is "seven hundred twenty trillion, seven hundred sixty-one billion, four hundred thirty million, six hundred four thousand, five hundred thirty".