720926987752 has 8 divisors (see below), whose sum is σ = 1351738102050. Its totient is φ = 360463493872.

The previous prime is 720926987723. The next prime is 720926987783. The reversal of 720926987752 is 257789629027.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 509873114916 + 211053872836 = 714054^2 + 459406^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45057936727 + ... + 45057936742.

Almost surely, 2^720926987752 is an apocalyptic number.

It is an amenable number.

720926987752 is a deficient number, since it is larger than the sum of its proper divisors (630811114298).

720926987752 is a wasteful number, since it uses less digits than its factorization.

720926987752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90115873475 (or 90115873471 counting only the distinct ones).

The product of its (nonzero) digits is 53343360, while the sum is 64.

The spelling of 720926987752 in words is "seven hundred twenty billion, nine hundred twenty-six million, nine hundred eighty-seven thousand, seven hundred fifty-two".