18769944064 has 80 divisors (see below), whose sum is σ = 39026484288. Its totient is φ = 9011372032.

The previous prime is 18769944059. The next prime is 18769944097. The reversal of 18769944064 is 46044996781.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1268034 + ... + 1282750.

Almost surely, 2^18769944064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18769944064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19513242144).

18769944064 is an abundant number, since it is smaller than the sum of its proper divisors (20256540224).

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

18769944064 is an equidigital number, since it uses as much as digits as its factorization.

18769944064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14835 (or 14819 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 58.

The spelling of 18769944064 in words is "eighteen billion, seven hundred sixty-nine million, nine hundred forty-four thousand, sixty-four".