18471279874 has 16 divisors (see below), whose sum is σ = 27885686400. Its totient is φ = 9176179824.

The previous prime is 18471279857. The next prime is 18471279877. The reversal of 18471279874 is 47897217481.

It is not an unprimeable number, because it can be changed into a prime (18471279877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259447 + ... + 322885.

It is an arithmetic number, because the mean of its divisors is an integer number (1742855400).

Almost surely, 2^18471279874 is an apocalyptic number.

18471279874 is a deficient number, since it is larger than the sum of its proper divisors (9414406526).

18471279874 is a wasteful number, since it uses less digits than its factorization.

18471279874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64377.

The product of its digits is 6322176, while the sum is 58.

The spelling of 18471279874 in words is "eighteen billion, four hundred seventy-one million, two hundred seventy-nine thousand, eight hundred seventy-four".