720506725352 has 8 divisors (see below), whose sum is σ = 1350950110050. Its totient is φ = 360253362672.

The previous prime is 720506725339. The next prime is 720506725363. The reversal of 720506725352 is 253527605027.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 531373934116 + 189132791236 = 728954^2 + 434894^2 .

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, 45031670327 + ... + 45031670342.

Almost surely, 2^720506725352 is an apocalyptic number.

It is an amenable number.

720506725352 is a deficient number, since it is larger than the sum of its proper divisors (630443384698).

720506725352 is a wasteful number, since it uses less digits than its factorization.

720506725352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90063340675 (or 90063340671 counting only the distinct ones).

The product of its (nonzero) digits is 882000, while the sum is 44.

The spelling of 720506725352 in words is "seven hundred twenty billion, five hundred six million, seven hundred twenty-five thousand, three hundred fifty-two".