18167379841 has 48 divisors (see below), whose sum is σ = 20921848320. Its totient is φ = 15745466880.

The previous prime is 18167379827. The next prime is 18167379847. The reversal of 18167379841 is 14897376181.

It is not a de Polignac number, because 18167379841 - 2⁵ = 18167379809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18167379847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25623595 + ... + 25624303.

It is an arithmetic number, because the mean of its divisors is an integer number (435871840).

Almost surely, 2^18167379841 is an apocalyptic number.

It is an amenable number.

18167379841 is a deficient number, since it is larger than the sum of its proper divisors (2754468479).

18167379841 is a wasteful number, since it uses less digits than its factorization.

18167379841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906 (or 893 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 55.

The spelling of 18167379841 in words is "eighteen billion, one hundred sixty-seven million, three hundred seventy-nine thousand, eight hundred forty-one".