12669451318 has 32 divisors (see below), whose sum is σ = 20077056000. Its totient is φ = 5987234880.

The previous prime is 12669451259. The next prime is 12669451321. The reversal of 12669451318 is 81315496621.

It is a congruent 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, 1449730 + ... + 1458442.

It is an arithmetic number, because the mean of its divisors is an integer number (627408000).

Almost surely, 2^12669451318 is an apocalyptic number.

12669451318 is a deficient number, since it is larger than the sum of its proper divisors (7407604682).

12669451318 is a wasteful number, since it uses less digits than its factorization.

12669451318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9292.

The product of its digits is 311040, while the sum is 46.

The spelling of 12669451318 in words is "twelve billion, six hundred sixty-nine million, four hundred fifty-one thousand, three hundred eighteen".