18838793707776 has 864 divisors, whose sum is σ = 68255432627200. Its totient is φ = 5062228254720.

The previous prime is 18838793707759. The next prime is 18838793707787. The reversal of 18838793707776 is 67770739783881.

18838793707776 is a `hidden beast` number, since 1 + 88 + 38 + 7 + 9 + 370 + 77 + 76 = 666.

It is a tau number, because it is divible by the number of its divisors (864).

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a junction number, because it is equal to n+sod(n) for n = 18838793707695 and 18838793707704.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1150031106 + ... + 1150047486.

Almost surely, 2^{18838793707776} is an apocalyptic number.

18838793707776 is a gapful number since it is divisible by the number (16) 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 18838793707776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34127716313600).

18838793707776 is an abundant number, since it is smaller than the sum of its proper divisors (49416638919424).

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

18838793707776 is a wasteful number, since it uses less digits than its factorization.

18838793707776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16577 (or 16551 counting only the distinct ones).

The product of its (nonzero) digits is 4182119424, while the sum is 81.

The spelling of 18838793707776 in words is "eighteen trillion, eight hundred thirty-eight billion, seven hundred ninety-three million, seven hundred seven thousand, seven hundred seventy-six".