720964737280 has 72 divisors (see below), whose sum is σ = 1773609905592. Its totient is φ = 280591663104.

The previous prime is 720964737263. The next prime is 720964737313. The reversal of 720964737280 is 82737469027.

It can be written as a sum of positive squares in 4 ways, for example, as 371787745536 + 349176991744 = 609744^2 + 590912^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7564177 + ... + 7658896.

It is an arithmetic number, because the mean of its divisors is an integer number (24633470911).

Almost surely, 2^720964737280 is an apocalyptic number.

It is an amenable number.

720964737280 is an abundant number, since it is smaller than the sum of its proper divisors (1052645168312).

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

720964737280 is a wasteful number, since it uses less digits than its factorization.

720964737280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15223131 (or 15223117 counting only the distinct ones).

The product of its (nonzero) digits is 7112448, while the sum is 55.

The spelling of 720964737280 in words is "seven hundred twenty billion, nine hundred sixty-four million, seven hundred thirty-seven thousand, two hundred eighty".