19116663875 has 16 divisors (see below), whose sum is σ = 23864041344. Its totient is φ = 15289200000.

The previous prime is 19116663827. The next prime is 19116663889. The reversal of 19116663875 is 57836661191.

It is a de Polignac number, because none of the positive numbers 2^k-19116663875 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 495275 + ... + 532475.

It is an arithmetic number, because the mean of its divisors is an integer number (1491502584).

Almost surely, 2^19116663875 is an apocalyptic number.

19116663875 is a deficient number, since it is larger than the sum of its proper divisors (4747377469).

19116663875 is an equidigital number, since it uses as much as digits as its factorization.

19116663875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41327 (or 41317 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 53.

The spelling of 19116663875 in words is "nineteen billion, one hundred sixteen million, six hundred sixty-three thousand, eight hundred seventy-five".