17994951104 has 56 divisors (see below), whose sum is σ = 38628401280. Its totient is φ = 8268033024.

The previous prime is 17994951077. The next prime is 17994951157. The reversal of 17994951104 is 40115949971.

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, 137042 + ... + 234030.

It is an arithmetic number, because the mean of its divisors is an integer number (689792880).

Almost surely, 2^17994951104 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 17994951104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19314200640).

17994951104 is an abundant number, since it is smaller than the sum of its proper divisors (20633450176).

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

17994951104 is a wasteful number, since it uses less digits than its factorization.

17994951104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97237 (or 97227 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 50.

The spelling of 17994951104 in words is "seventeen billion, nine hundred ninety-four million, nine hundred fifty-one thousand, one hundred four".