18031848856679 has 8 divisors (see below), whose sum is σ = 20608018277760. Its totient is φ = 15455727188856.

The previous prime is 18031848856669. The next prime is 18031848856709. The reversal of 18031848856679 is 97665884813081.

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

It is a cyclic number.

It is not a de Polignac number, because 18031848856679 - 2⁸ = 18031848856423 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 (18031848856669) 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 7 ways as a sum of consecutive naturals, for example, 11125469 + ... + 12642774.

It is an arithmetic number, because the mean of its divisors is an integer number (2576002284720).

Almost surely, 2^{18031848856679} is an apocalyptic number.

18031848856679 is a deficient number, since it is larger than the sum of its proper divisors (2576169421081).

18031848856679 is a wasteful number, since it uses less digits than its factorization.

18031848856679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23876629.

The product of its (nonzero) digits is 557383680, while the sum is 74.

The spelling of 18031848856679 in words is "eighteen trillion, thirty-one billion, eight hundred forty-eight million, eight hundred fifty-six thousand, six hundred seventy-nine".