723513732512 has 12 divisors (see below), whose sum is σ = 1424417660946. Its totient is φ = 361756866240.

The previous prime is 723513732349. The next prime is 723513732547. The reversal of 723513732512 is 215237315327.

It can be written as a sum of positive squares in only one way, i.e., 722017280656 + 1496451856 = 849716^2 + 38684^2 .

It is a super-2 number, since 2×723513732512² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 723513732512.

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 as a sum of consecutive naturals, namely, 11304902039 + ... + 11304902102.

Almost surely, 2^723513732512 is an apocalyptic number.

It is an amenable number.

723513732512 is a deficient number, since it is larger than the sum of its proper divisors (700903928434).

723513732512 is a wasteful number, since it uses less digits than its factorization.

723513732512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22609804151 (or 22609804143 counting only the distinct ones).

The product of its digits is 264600, while the sum is 41.

The spelling of 723513732512 in words is "seven hundred twenty-three billion, five hundred thirteen million, seven hundred thirty-two thousand, five hundred twelve".