18867320679167 has 16 divisors (see below), whose sum is σ = 19142230111200. Its totient is φ = 18594526259712.

The previous prime is 18867320679161. The next prime is 18867320679241. The reversal of 18867320679167 is 76197602376881.

It is a cyclic number.

It is not a de Polignac number, because 18867320679167 - 2²⁰ = 18867319630591 is a prime.

It is a super-2 number, since 2×18867320679167² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18867320679167.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18867320679161) 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, 40451228 + ... + 40914990.

It is an arithmetic number, because the mean of its divisors is an integer number (1196389381950).

Almost surely, 2^{18867320679167} is an apocalyptic number.

18867320679167 is a deficient number, since it is larger than the sum of its proper divisors (274909432033).

18867320679167 is a wasteful number, since it uses less digits than its factorization.

18867320679167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466042.

The product of its (nonzero) digits is 256048128, while the sum is 71.

The spelling of 18867320679167 in words is "eighteen trillion, eight hundred sixty-seven billion, three hundred twenty million, six hundred seventy-nine thousand, one hundred sixty-seven".