12469578818 has 32 divisors (see below), whose sum is σ = 20380016640. Its totient is φ = 5700332880.

The previous prime is 12469578817. The next prime is 12469578851. The reversal of 12469578818 is 81887596421.

It is not an unprimeable number, because it can be changed into a prime (12469578811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 417905 + ... + 446747.

It is an arithmetic number, because the mean of its divisors is an integer number (636875520).

Almost surely, 2^12469578818 is an apocalyptic number.

12469578818 is a deficient number, since it is larger than the sum of its proper divisors (7910437822).

12469578818 is a wasteful number, since it uses less digits than its factorization.

12469578818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29262.

The product of its digits is 7741440, while the sum is 59.

The spelling of 12469578818 in words is "twelve billion, four hundred sixty-nine million, five hundred seventy-eight thousand, eight hundred eighteen".