18704012755138 has 16 divisors (see below), whose sum is σ = 28328680261440. Its totient is φ = 9261121082256.

The previous prime is 18704012755133. The next prime is 18704012755151. The reversal of 18704012755138 is 83155721040781.

It is not an unprimeable number, because it can be changed into a prime (18704012755133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24458173 + ... + 25211311.

It is an arithmetic number, because the mean of its divisors is an integer number (1770542516340).

Almost surely, 2^{18704012755138} is an apocalyptic number.

18704012755138 is a deficient number, since it is larger than the sum of its proper divisors (9624667506302).

18704012755138 is a wasteful number, since it uses less digits than its factorization.

18704012755138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873801.

The product of its (nonzero) digits is 1881600, while the sum is 52.

The spelling of 18704012755138 in words is "eighteen trillion, seven hundred four billion, twelve million, seven hundred fifty-five thousand, one hundred thirty-eight".