17983696636480 has 224 divisors, whose sum is σ = 45918758373120. Its totient is φ = 6691039027200.

The previous prime is 17983696636427. The next prime is 17983696636519. The reversal of 17983696636480 is 8463669638971.

It is a junction number, because it is equal to n+sod(n) for n = 17983696636397 and 17983696636406.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 517662951 + ... + 517697689.

Almost surely, 2^{17983696636480} is an apocalyptic number.

17983696636480 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 17983696636480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22959379186560).

17983696636480 is an abundant number, since it is smaller than the sum of its proper divisors (27935061736640).

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

17983696636480 is a wasteful number, since it uses less digits than its factorization.

17983696636480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36717 (or 36707 counting only the distinct ones).

The product of its (nonzero) digits is 1693052928, while the sum is 76.

The spelling of 17983696636480 in words is "seventeen trillion, nine hundred eighty-three billion, six hundred ninety-six million, six hundred thirty-six thousand, four hundred eighty".