18107998453694 has 8 divisors (see below), whose sum is σ = 27169873016400. Its totient is φ = 9051374114896.

The previous prime is 18107998453691. The next prime is 18107998453717. The reversal of 18107998453694 is 49635489970181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18107998453691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1312547354 + ... + 1312561149.

It is an arithmetic number, because the mean of its divisors is an integer number (3396234127050).

Almost surely, 2^{18107998453694} is an apocalyptic number.

18107998453694 is a deficient number, since it is larger than the sum of its proper divisors (9061874562706).

18107998453694 is a wasteful number, since it uses less digits than its factorization.

18107998453694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2625111954.

The product of its (nonzero) digits is 470292480, while the sum is 74.

The spelling of 18107998453694 in words is "eighteen trillion, one hundred seven billion, nine hundred ninety-eight million, four hundred fifty-three thousand, six hundred ninety-four".