12632513885 has 4 divisors (see below), whose sum is σ = 15159016668. Its totient is φ = 10106011104.

The previous prime is 12632513879. The next prime is 12632513893. The reversal of 12632513885 is 58831523621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58831523621 = 13 ⋅4525501817.

It can be written as a sum of positive squares in 2 ways, for example, as 6629053561 + 6003460324 = 81419^2 + 77482^2 .

It is a cyclic number.

It is not a de Polignac number, because 12632513885 - 2⁶ = 12632513821 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1263251384 + ... + 1263251393.

It is an arithmetic number, because the mean of its divisors is an integer number (3789754167).

Almost surely, 2^12632513885 is an apocalyptic number.

It is an amenable number.

12632513885 is a deficient number, since it is larger than the sum of its proper divisors (2526502783).

12632513885 is an equidigital number, since it uses as much as digits as its factorization.

12632513885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2526502782.

The product of its digits is 345600, while the sum is 44.

The spelling of 12632513885 in words is "twelve billion, six hundred thirty-two million, five hundred thirteen thousand, eight hundred eighty-five".