17994240000 has 780 divisors, whose sum is σ = 71853024672. Its totient is φ = 4300800000.

The previous prime is 17994239999. The next prime is 17994240031. The reversal of 17994240000 is 4249971.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 253439965 + ... + 253440035.

Almost surely, 2^17994240000 is an apocalyptic number.

17994240000 is a gapful number since it is divisible by the number (10) 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 17994240000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35926512336).

17994240000 is an abundant number, since it is smaller than the sum of its proper divisors (53858784672).

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

17994240000 is an equidigital number, since it uses as much as digits as its factorization.

17994240000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132 (or 92 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

Adding to 17994240000 its reverse (4249971), we get a palindrome (17998489971).

The spelling of 17994240000 in words is "seventeen billion, nine hundred ninety-four million, two hundred forty thousand".