12631253553 has 12 divisors (see below), whose sum is σ = 18264301380. Its totient is φ = 8411993856.

The previous prime is 12631253527. The next prime is 12631253563. The reversal of 12631253553 is 35535213621.

12631253553 is a `hidden beast` number, since 1 + 2 + 63 + 12 + 535 + 53 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5441570289 + 7189683264 = 73767^2 + 84792^2 .

It is not a de Polignac number, because 12631253553 - 2⁶ = 12631253489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12631253563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 727768 + ... + 744921.

It is an arithmetic number, because the mean of its divisors is an integer number (1522025115).

Almost surely, 2^12631253553 is an apocalyptic number.

It is an amenable number.

12631253553 is a deficient number, since it is larger than the sum of its proper divisors (5633047827).

12631253553 is a wasteful number, since it uses less digits than its factorization.

12631253553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1473648 (or 1473645 counting only the distinct ones).

The product of its digits is 81000, while the sum is 36.

The spelling of 12631253553 in words is "twelve billion, six hundred thirty-one million, two hundred fifty-three thousand, five hundred fifty-three".