18699847162 has 16 divisors (see below), whose sum is σ = 28138199040. Its totient is φ = 9320484672.

The previous prime is 18699847123. The next prime is 18699847163. The reversal of 18699847162 is 26174899681.

It is a self number, because there is not a number n which added to its sum of digits gives 18699847162.

It is not an unprimeable number, because it can be changed into a prime (18699847163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1099173 + ... + 1116055.

It is an arithmetic number, because the mean of its divisors is an integer number (1758637440).

Almost surely, 2^18699847162 is an apocalyptic number.

18699847162 is a deficient number, since it is larger than the sum of its proper divisors (9438351878).

18699847162 is a wasteful number, since it uses less digits than its factorization.

18699847162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18597.

The product of its digits is 10450944, while the sum is 61.

The spelling of 18699847162 in words is "eighteen billion, six hundred ninety-nine million, eight hundred forty-seven thousand, one hundred sixty-two".