17693340645 has 32 divisors (see below), whose sum is σ = 29940641280. Its totient is φ = 8897394240.

The previous prime is 17693340593. The next prime is 17693340649. The reversal of 17693340645 is 54604339671.

It is not a de Polignac number, because 17693340645 - 2¹⁶ = 17693275109 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 17693340594 and 17693340603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17693340649) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86979 + ... + 207248.

It is an arithmetic number, because the mean of its divisors is an integer number (935645040).

Almost surely, 2^17693340645 is an apocalyptic number.

17693340645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

17693340645 is a deficient number, since it is larger than the sum of its proper divisors (12247300635).

17693340645 is a wasteful number, since it uses less digits than its factorization.

17693340645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294465.

The product of its (nonzero) digits is 1632960, while the sum is 48.

The spelling of 17693340645 in words is "seventeen billion, six hundred ninety-three million, three hundred forty thousand, six hundred forty-five".