12638054854593 has 24 divisors (see below), whose sum is σ = 21256458844608. Its totient is φ = 7085486277792.

The previous prime is 12638054854591. The next prime is 12638054854609. The reversal of 12638054854593 is 39545845083621.

12638054854593 is a `hidden beast` number, since 1 + 2 + 6 + 3 + 80 + 5 + 4 + 8 + 545 + 9 + 3 = 666.

It is not a de Polignac number, because 12638054854593 - 2¹ = 12638054854591 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 12638054854593.

It is not an unprimeable number, because it can be changed into a prime (12638054854591) 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, 1892487655 + ... + 1892494332.

It is an arithmetic number, because the mean of its divisors is an integer number (885685785192).

Almost surely, 2^{12638054854593} is an apocalyptic number.

It is an amenable number.

12638054854593 is a deficient number, since it is larger than the sum of its proper divisors (8618403990015).

12638054854593 is a wasteful number, since it uses less digits than its factorization.

12638054854593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3784982053 (or 3784982050 counting only the distinct ones).

The product of its (nonzero) digits is 124416000, while the sum is 63.

The spelling of 12638054854593 in words is "twelve trillion, six hundred thirty-eight billion, fifty-four million, eight hundred fifty-four thousand, five hundred ninety-three".