17968788711 has 16 divisors (see below), whose sum is σ = 26622501120. Its totient is φ = 11978259480.

The previous prime is 17968788703. The next prime is 17968788731. The reversal of 17968788711 is 11788786971.

It is not a de Polignac number, because 17968788711 - 2³ = 17968788703 is a prime.

It is a super-2 number, since 2×17968788711² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17968788731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 618436 + ... + 646838.

It is an arithmetic number, because the mean of its divisors is an integer number (1663906320).

Almost surely, 2^17968788711 is an apocalyptic number.

17968788711 is a deficient number, since it is larger than the sum of its proper divisors (8653712409).

17968788711 is a wasteful number, since it uses less digits than its factorization.

17968788711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51843 (or 51837 counting only the distinct ones).

The product of its digits is 9483264, while the sum is 63.

The spelling of 17968788711 in words is "seventeen billion, nine hundred sixty-eight million, seven hundred eighty-eight thousand, seven hundred eleven".