12536147744 has 12 divisors (see below), whose sum is σ = 24680540934. Its totient is φ = 6268073856.

The previous prime is 12536147699. The next prime is 12536147749. The reversal of 12536147744 is 44774163521.

It can be written as a sum of positive squares in only one way, i.e., 7468416400 + 5067731344 = 86420^2 + 71188^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12536147695 and 12536147704.

It is not an unprimeable number, because it can be changed into a prime (12536147749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195877277 + ... + 195877340.

Almost surely, 2^12536147744 is an apocalyptic number.

It is an amenable number.

12536147744 is a deficient number, since it is larger than the sum of its proper divisors (12144393190).

12536147744 is an equidigital number, since it uses as much as digits as its factorization.

12536147744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391754627 (or 391754619 counting only the distinct ones).

The product of its digits is 564480, while the sum is 44.

The spelling of 12536147744 in words is "twelve billion, five hundred thirty-six million, one hundred forty-seven thousand, seven hundred forty-four".