12750474724 has 81 divisors (see below), whose sum is σ = 24984084699. Its totient is φ = 5691067200.

The previous prime is 12750474703. The next prime is 12750474727. The reversal of 12750474724 is 42747405721.

The square root of 12750474724 is 112918.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 480924900 + 12269549824 = 21930^2 + 110768^2 .

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12750474727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 126242274 + ... + 126242374.

Almost surely, 2^12750474724 is an apocalyptic number.

12750474724 is the 112918-th square number.

It is an amenable number.

12750474724 is a deficient number, since it is larger than the sum of its proper divisors (12233609975).

12750474724 is a wasteful number, since it uses less digits than its factorization.

12750474724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 439040, while the sum is 43.

The spelling of 12750474724 in words is "twelve billion, seven hundred fifty million, four hundred seventy-four thousand, seven hundred twenty-four".