13638123054 has 24 divisors (see below), whose sum is σ = 29565653832. Its totient is φ = 4543519920.

The previous prime is 13638123017. The next prime is 13638123073. The reversal of 13638123054 is 45032183631.

13638123054 is a `hidden beast` number, since 1 + 3 + 638 + 12 + 3 + 0 + 5 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 176589 + ... + 241784.

It is an arithmetic number, because the mean of its divisors is an integer number (1231902243).

Almost surely, 2^13638123054 is an apocalyptic number.

13638123054 is an abundant number, since it is smaller than the sum of its proper divisors (15927530778).

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

13638123054 is a wasteful number, since it uses less digits than its factorization.

13638123054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420192 (or 420189 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 13638123054 in words is "thirteen billion, six hundred thirty-eight million, one hundred twenty-three thousand, fifty-four".