18788605696 has 288 divisors, whose sum is σ = 47093760000. Its totient is φ = 7302721536.

The previous prime is 18788605687. The next prime is 18788605697. The reversal of 18788605696 is 69650688781.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18788605697) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94415005 + ... + 94415203.

It is an arithmetic number, because the mean of its divisors is an integer number (163520000).

Almost surely, 2^18788605696 is an apocalyptic number.

18788605696 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 18788605696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23546880000).

18788605696 is an abundant number, since it is smaller than the sum of its proper divisors (28305154304).

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

18788605696 is a wasteful number, since it uses less digits than its factorization.

18788605696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347 (or 333 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 64.

The spelling of 18788605696 in words is "eighteen billion, seven hundred eighty-eight million, six hundred five thousand, six hundred ninety-six".