17975396868 has 48 divisors (see below), whose sum is σ = 49275218496. Its totient is φ = 5028082560.

The previous prime is 17975396863. The next prime is 17975396893. The reversal of 17975396868 is 86869357971.

It is a super-2 number, since 2×17975396868² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (17975396863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5235871 + ... + 5239302.

It is an arithmetic number, because the mean of its divisors is an integer number (1026567052).

Almost surely, 2^17975396868 is an apocalyptic number.

It is an amenable number.

17975396868 is an abundant number, since it is smaller than the sum of its proper divisors (31299821628).

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

17975396868 is a wasteful number, since it uses less digits than its factorization.

17975396868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10475204 (or 10475202 counting only the distinct ones).

The product of its digits is 137168640, while the sum is 69.

The spelling of 17975396868 in words is "seventeen billion, nine hundred seventy-five million, three hundred ninety-six thousand, eight hundred sixty-eight".