12636010531 has 4 divisors (see below), whose sum is σ = 12713532232. Its totient is φ = 12558488832.

The previous prime is 12636010523. The next prime is 12636010537. The reversal of 12636010531 is 13501063621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12636010531 - 2³ = 12636010523 is a prime.

It is a super-2 number, since 2×12636010531² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12636010531.

It is not an unprimeable number, because it can be changed into a prime (12636010537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38760606 + ... + 38760931.

It is an arithmetic number, because the mean of its divisors is an integer number (3178383058).

Almost surely, 2^12636010531 is an apocalyptic number.

12636010531 is a deficient number, since it is larger than the sum of its proper divisors (77521701).

12636010531 is an equidigital number, since it uses as much as digits as its factorization.

12636010531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77521700.

The product of its (nonzero) digits is 3240, while the sum is 28.

The spelling of 12636010531 in words is "twelve billion, six hundred thirty-six million, ten thousand, five hundred thirty-one".