17391009372 has 48 divisors (see below), whose sum is σ = 45209912832. Its totient is φ = 5157873280.

The previous prime is 17391009359. The next prime is 17391009379. The reversal of 17391009372 is 27390019371.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17391009379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1395393 + ... + 1407800.

It is an arithmetic number, because the mean of its divisors is an integer number (941873184).

Almost surely, 2^17391009372 is an apocalyptic number.

17391009372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

17391009372 is an abundant number, since it is smaller than the sum of its proper divisors (27818903460).

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

17391009372 is a wasteful number, since it uses less digits than its factorization.

17391009372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2803258 (or 2803256 counting only the distinct ones).

The product of its (nonzero) digits is 71442, while the sum is 42.

Subtracting 17391009372 from its reverse (27390019371), we obtain a palindrome (9999009999).

The spelling of 17391009372 in words is "seventeen billion, three hundred ninety-one million, nine thousand, three hundred seventy-two".