18913094170908 has 36 divisors (see below), whose sum is σ = 51335541322632. Its totient is φ = 5403741191520.

The previous prime is 18913094170871. The next prime is 18913094170913. The reversal of 18913094170908 is 80907149031981.

It is a super-2 number, since 2×18913094170908² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16082562483 + ... + 16082563658.

It is an arithmetic number, because the mean of its divisors is an integer number (1425987258962).

Almost surely, 2^{18913094170908} is an apocalyptic number.

It is an amenable number.

18913094170908 is an abundant number, since it is smaller than the sum of its proper divisors (32422447151724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18913094170908 is a wasteful number, since it uses less digits than its factorization.

18913094170908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32165126162 (or 32165126153 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 60.

The spelling of 18913094170908 in words is "eighteen trillion, nine hundred thirteen billion, ninety-four million, one hundred seventy thousand, nine hundred eight".