19116975218 has 32 divisors (see below), whose sum is σ = 34264632960. Its totient is φ = 7896367360.

The previous prime is 19116975193. The next prime is 19116975223. The reversal of 19116975218 is 81257961191.

It is a super-2 number, since 2×19116975218² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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, 870446 + ... + 892137.

It is an arithmetic number, because the mean of its divisors is an integer number (1070769780).

Almost surely, 2^19116975218 is an apocalyptic number.

19116975218 is a deficient number, since it is larger than the sum of its proper divisors (15147657742).

19116975218 is a wasteful number, since it uses less digits than its factorization.

19116975218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1762642.

The product of its digits is 272160, while the sum is 50.

The spelling of 19116975218 in words is "nineteen billion, one hundred sixteen million, nine hundred seventy-five thousand, two hundred eighteen".