18928913420000 has 60 divisors (see below), whose sum is σ = 46567966399416. Its totient is φ = 7571565360000.

The previous prime is 18928913419921. The next prime is 18928913420029. The reversal of 18928913420000 is 2431982981.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 473202836 + ... + 473242835.

Almost surely, 2^{18928913420000} is an apocalyptic number.

18928913420000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18928913420000 is an abundant number, since it is smaller than the sum of its proper divisors (27639052979416).

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

18928913420000 is an frugal number, since it uses more digits than its factorization.

18928913420000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946445701 (or 946445678 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 47.

The spelling of 18928913420000 in words is "eighteen trillion, nine hundred twenty-eight billion, nine hundred thirteen million, four hundred twenty thousand".