18990710323200 has 3456 divisors, whose sum is σ = 89686134720000. Its totient is φ = 3934199808000.

The previous prime is 18990710323163. The next prime is 18990710323223. The reversal of 18990710323200 is 232301709981.

It is a tau number, because it is divible by the number of its divisors (3456).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 57373747035 + ... + 57373747365.

Almost surely, 2^{18990710323200} is an apocalyptic number.

18990710323200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18990710323200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44843067360000).

18990710323200 is an abundant number, since it is smaller than the sum of its proper divisors (70695424396800).

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

18990710323200 is a wasteful number, since it uses less digits than its factorization.

18990710323200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415 (or 359 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The spelling of 18990710323200 in words is "eighteen trillion, nine hundred ninety billion, seven hundred ten million, three hundred twenty-three thousand, two hundred".