18190922928894 has 24 divisors (see below), whose sum is σ = 39418826176080. Its totient is φ = 6062847156288.

The previous prime is 18190922928889. The next prime is 18190922928961. The reversal of 18190922928894 is 49882922909181.

18190922928894 is a `hidden beast` number, since 1 + 8 + 1 + 90 + 92 + 292 + 88 + 94 = 666.

It is a super-2 number, since 2×18190922928894² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66010347 + ... + 66285350.

It is an arithmetic number, because the mean of its divisors is an integer number (1642451090670).

Almost surely, 2^{18190922928894} is an apocalyptic number.

18190922928894 is an abundant number, since it is smaller than the sum of its proper divisors (21227903247186).

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

18190922928894 is a wasteful number, since it uses less digits than its factorization.

18190922928894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132303344 (or 132303341 counting only the distinct ones).

The product of its (nonzero) digits is 107495424, while the sum is 72.

The spelling of 18190922928894 in words is "eighteen trillion, one hundred ninety billion, nine hundred twenty-two million, nine hundred twenty-eight thousand, eight hundred ninety-four".