18327114860781 has 8 divisors (see below), whose sum is σ = 24445584324864. Its totient is φ = 12213360985280.

The previous prime is 18327114860669. The next prime is 18327114860797. The reversal of 18327114860781 is 18706841172381.

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 18327114860781 - 2¹³ = 18327114852589 is a prime.

It is a super-2 number, since 2×18327114860781² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18327114860281) 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, 1178888076 + ... + 1178903621.

It is an arithmetic number, because the mean of its divisors is an integer number (3055698040608).

Almost surely, 2^{18327114860781} is an apocalyptic number.

It is an amenable number.

18327114860781 is a deficient number, since it is larger than the sum of its proper divisors (6118469464083).

18327114860781 is a wasteful number, since it uses less digits than its factorization.

18327114860781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2357794291.

The product of its (nonzero) digits is 3612672, while the sum is 57.

The spelling of 18327114860781 in words is "eighteen trillion, three hundred twenty-seven billion, one hundred fourteen million, eight hundred sixty thousand, seven hundred eighty-one".