18001184689679 has 16 divisors (see below), whose sum is σ = 19149049920000. Its totient is φ = 16874309849760.

The previous prime is 18001184689673. The next prime is 18001184689681. The reversal of 18001184689679 is 97698648110081.

It is a de Polignac number, because none of the positive numbers 2^k-18001184689679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18001184689673) 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, 12467459 + ... + 13836180.

It is an arithmetic number, because the mean of its divisors is an integer number (1196815620000).

Almost surely, 2^{18001184689679} is an apocalyptic number.

18001184689679 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

18001184689679 is a deficient number, since it is larger than the sum of its proper divisors (1147865230321).

18001184689679 is a wasteful number, since it uses less digits than its factorization.

18001184689679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26304038.

The product of its (nonzero) digits is 41803776, while the sum is 68.

The spelling of 18001184689679 in words is "eighteen trillion, one billion, one hundred eighty-four million, six hundred eighty-nine thousand, six hundred seventy-nine".