12687054242436 has 48 divisors (see below), whose sum is σ = 37591271831680. Its totient is φ = 3624872640480.

The previous prime is 12687054242431. The next prime is 12687054242453. The reversal of 12687054242436 is 63424245078621.

It is a happy number.

12687054242436 is a `hidden beast` number, since 1 + 2 + 6 + 8 + 70 + 542 + 4 + 24 + 3 + 6 = 666.

It is a super-2 number, since 2×12687054242436² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (12687054242431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8390908135 + ... + 8390909646.

Almost surely, 2^{12687054242436} is an apocalyptic number.

It is an amenable number.

12687054242436 is an abundant number, since it is smaller than the sum of its proper divisors (24904217589244).

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

12687054242436 is a wasteful number, since it uses less digits than its factorization.

12687054242436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16781817801 (or 16781817793 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 54.

The spelling of 12687054242436 in words is "twelve trillion, six hundred eighty-seven billion, fifty-four million, two hundred forty-two thousand, four hundred thirty-six".