18669446274 has 64 divisors (see below), whose sum is σ = 39788703360. Its totient is φ = 5819673600.

The previous prime is 18669446249. The next prime is 18669446321. The reversal of 18669446274 is 47264496681.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14349424 + ... + 14350724.

It is an arithmetic number, because the mean of its divisors is an integer number (621698490).

Almost surely, 2^18669446274 is an apocalyptic number.

18669446274 is an abundant number, since it is smaller than the sum of its proper divisors (21119257086).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18669446274 is a wasteful number, since it uses less digits than its factorization.

18669446274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2115.

The product of its digits is 13934592, while the sum is 57.

The spelling of 18669446274 in words is "eighteen billion, six hundred sixty-nine million, four hundred forty-six thousand, two hundred seventy-four".