18942101100880 has 40 divisors (see below), whose sum is σ = 46358300066400. Its totient is φ = 7178059363968.

The previous prime is 18942101100877. The next prime is 18942101100889. The reversal of 18942101100880 is 8800110124981.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18942101100889) 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 7 ways as a sum of consecutive naturals, for example, 6230952790 + ... + 6230955829.

It is an arithmetic number, because the mean of its divisors is an integer number (1158957501660).

Almost surely, 2^{18942101100880} is an apocalyptic number.

18942101100880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18942101100880 is an abundant number, since it is smaller than the sum of its proper divisors (27416198965520).

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

18942101100880 is a wasteful number, since it uses less digits than its factorization.

18942101100880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12461908651 (or 12461908645 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 43.

The spelling of 18942101100880 in words is "eighteen trillion, nine hundred forty-two billion, one hundred one million, one hundred thousand, eight hundred eighty".