18941095164 has 12 divisors (see below), whose sum is σ = 44195888744. Its totient is φ = 6313698384.

The previous prime is 18941095163. The next prime is 18941095169. The reversal of 18941095164 is 46159014981.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×18941095164³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18941095163) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 789212287 + ... + 789212310.

Almost surely, 2^18941095164 is an apocalyptic number.

It is an amenable number.

18941095164 is an abundant number, since it is smaller than the sum of its proper divisors (25254793580).

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

18941095164 is a wasteful number, since it uses less digits than its factorization.

18941095164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1578424604 (or 1578424602 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 48.

The spelling of 18941095164 in words is "eighteen billion, nine hundred forty-one million, ninety-five thousand, one hundred sixty-four".