18883712736 has 240 divisors, whose sum is σ = 63746331264. Its totient is φ = 5394086784.

The previous prime is 18883712717. The next prime is 18883712777. The reversal of 18883712736 is 63721738881.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4406851 + ... + 4411133.

Almost surely, 2^18883712736 is an apocalyptic number.

18883712736 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 18883712736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31873165632).

18883712736 is an abundant number, since it is smaller than the sum of its proper divisors (44862618528).

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

18883712736 is an frugal number, since it uses more digits than its factorization.

18883712736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4327 (or 4295 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 54.

The spelling of 18883712736 in words is "eighteen billion, eight hundred eighty-three million, seven hundred twelve thousand, seven hundred thirty-six".