17996874720 has 192 divisors, whose sum is σ = 62078607360. Its totient is φ = 4346316800.

The previous prime is 17996874697. The next prime is 17996874733. The reversal of 17996874720 is 2747869971.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1413985 + ... + 1426655.

It is an arithmetic number, because the mean of its divisors is an integer number (323326080).

Almost surely, 2^17996874720 is an apocalyptic number.

17996874720 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 17996874720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31039303680).

17996874720 is an abundant number, since it is smaller than the sum of its proper divisors (44081732640).

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

17996874720 is a wasteful number, since it uses less digits than its factorization.

17996874720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12969 (or 12961 counting only the distinct ones).

The product of its (nonzero) digits is 10668672, while the sum is 60.

The spelling of 17996874720 in words is "seventeen billion, nine hundred ninety-six million, eight hundred seventy-four thousand, seven hundred twenty".