12638054854602 has 64 divisors (see below), whose sum is σ = 28274488848000. Its totient is φ = 4184199452160.

The previous prime is 12638054854591. The next prime is 12638054854609. The reversal of 12638054854602 is 20645845083621.

12638054854602 is a `hidden beast` number, since 1 + 2 + 6 + 38 + 0 + 548 + 5 + 4 + 60 + 2 = 666.

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 (12638054854609) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 285538458 + ... + 285582714.

It is an arithmetic number, because the mean of its divisors is an integer number (441788888250).

Almost surely, 2^{12638054854602} is an apocalyptic number.

12638054854602 is an abundant number, since it is smaller than the sum of its proper divisors (15636433993398).

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

12638054854602 is a wasteful number, since it uses less digits than its factorization.

12638054854602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79908 (or 79902 counting only the distinct ones).

The product of its (nonzero) digits is 11059200, while the sum is 54.

The spelling of 12638054854602 in words is "twelve trillion, six hundred thirty-eight billion, fifty-four million, eight hundred fifty-four thousand, six hundred two".