12387637025 has 6 divisors (see below), whose sum is σ = 15360669942. Its totient is φ = 9910109600.

The previous prime is 12387637007. The next prime is 12387637033. The reversal of 12387637025 is 52073678321.

It can be written as a sum of positive squares in 3 ways, for example, as 216913984 + 12170723041 = 14728^2 + 110321^2 .

It is not a de Polignac number, because 12387637025 - 2¹⁶ = 12387571489 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 247752716 + ... + 247752765.

It is an arithmetic number, because the mean of its divisors is an integer number (2560111657).

Almost surely, 2^12387637025 is an apocalyptic number.

It is an amenable number.

12387637025 is a deficient number, since it is larger than the sum of its proper divisors (2973032917).

12387637025 is an equidigital number, since it uses as much as digits as its factorization.

12387637025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495505491 (or 495505486 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 44.

The spelling of 12387637025 in words is "twelve billion, three hundred eighty-seven million, six hundred thirty-seven thousand, twenty-five".