18890099689312 has 48 divisors (see below), whose sum is σ = 38961444517632. Its totient is φ = 8998401808000.

The previous prime is 18890099689301. The next prime is 18890099689343. The reversal of 18890099689312 is 21398699009881.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50942548 + ... + 51312019.

It is an arithmetic number, because the mean of its divisors is an integer number (811696760784).

Almost surely, 2^{18890099689312} is an apocalyptic number.

It is an amenable number.

18890099689312 is an abundant number, since it is smaller than the sum of its proper divisors (20071344828320).

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

18890099689312 is a wasteful number, since it uses less digits than its factorization.

18890099689312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102254851 (or 102254843 counting only the distinct ones).

The product of its (nonzero) digits is 120932352, while the sum is 73.

The spelling of 18890099689312 in words is "eighteen trillion, eight hundred ninety billion, ninety-nine million, six hundred eighty-nine thousand, three hundred twelve".