17984053696 has 84 divisors (see below), whose sum is σ = 42526403136. Its totient is φ = 7519411200.

The previous prime is 17984053693. The next prime is 17984053751. The reversal of 17984053696 is 69635048971.

It is a super-2 number, since 2×17984053696² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 17984053696.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17984053693) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58641 + ... + 198511.

It is an arithmetic number, because the mean of its divisors is an integer number (506266704).

Almost surely, 2^17984053696 is an apocalyptic number.

17984053696 is a gapful number since it is divisible by the number (16) 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 17984053696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21263201568).

17984053696 is an abundant number, since it is smaller than the sum of its proper divisors (24542349440).

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

17984053696 is a wasteful number, since it uses less digits than its factorization.

17984053696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139938 (or 139921 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 58.

The spelling of 17984053696 in words is "seventeen billion, nine hundred eighty-four million, fifty-three thousand, six hundred ninety-six".