12636807480 has 96 divisors (see below), whose sum is σ = 44803240560. Its totient is φ = 3063467520.

The previous prime is 12636807473. The next prime is 12636807487. The reversal of 12636807480 is 8470863621.

12636807480 is a `hidden beast` number, since 1 + 2 + 636 + 8 + 0 + 7 + 4 + 8 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (12636807473) and next prime (12636807487).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12636807487) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1591597 + ... + 1599516.

Almost surely, 2^12636807480 is an apocalyptic number.

12636807480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12636807480 is an abundant number, since it is smaller than the sum of its proper divisors (32166433080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12636807480 is a wasteful number, since it uses less digits than its factorization.

12636807480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3191141 (or 3191134 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 12636807480 in words is "twelve billion, six hundred thirty-six million, eight hundred seven thousand, four hundred eighty".