12704356724 has 12 divisors (see below), whose sum is σ = 22361137764. Its totient is φ = 6315460224.

The previous prime is 12704356703. The next prime is 12704356759. The reversal of 12704356724 is 42765340721.

It can be written as a sum of positive squares in 2 ways, for example, as 12336100624 + 368256100 = 111068^2 + 19190^2 .

It is a super-2 number, since 2×12704356724² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 9178757 + ... + 9180140.

It is an arithmetic number, because the mean of its divisors is an integer number (1863428147).

Almost surely, 2^12704356724 is an apocalyptic number.

It is an amenable number.

12704356724 is a deficient number, since it is larger than the sum of its proper divisors (9656781040).

12704356724 is a wasteful number, since it uses less digits than its factorization.

12704356724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18359074 (or 18359072 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 41.

The spelling of 12704356724 in words is "twelve billion, seven hundred four million, three hundred fifty-six thousand, seven hundred twenty-four".