12686490975 has 48 divisors (see below), whose sum is σ = 22350631968. Its totient is φ = 6327459840.

The previous prime is 12686490967. The next prime is 12686490977. The reversal of 12686490975 is 57909468621.

It is not a de Polignac number, because 12686490975 - 2³ = 12686490967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12686490977) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 168487 + ... + 231863.

It is an arithmetic number, because the mean of its divisors is an integer number (465638166).

Almost surely, 2^12686490975 is an apocalyptic number.

12686490975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12686490975 is a deficient number, since it is larger than the sum of its proper divisors (9664140993).

12686490975 is a wasteful number, since it uses less digits than its factorization.

12686490975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63564 (or 63559 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 57.

The spelling of 12686490975 in words is "twelve billion, six hundred eighty-six million, four hundred ninety thousand, nine hundred seventy-five".