17952049689 has 24 divisors (see below), whose sum is σ = 27850455360. Its totient is φ = 10255934304.

The previous prime is 17952049679. The next prime is 17952049751. The reversal of 17952049689 is 98694025971.

It is not a de Polignac number, because 17952049689 - 2¹⁵ = 17952016921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (17952049679) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 768027 + ... + 791055.

It is an arithmetic number, because the mean of its divisors is an integer number (1160435640).

Almost surely, 2^17952049689 is an apocalyptic number.

It is an amenable number.

17952049689 is a deficient number, since it is larger than the sum of its proper divisors (9898405671).

17952049689 is a wasteful number, since it uses less digits than its factorization.

17952049689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28349 (or 28342 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 60.

The spelling of 17952049689 in words is "seventeen billion, nine hundred fifty-two million, forty-nine thousand, six hundred eighty-nine".