12266678889 has 24 divisors (see below), whose sum is σ = 18399693312. Its totient is φ = 7866567360.

The previous prime is 12266678867. The next prime is 12266678911. The reversal of 12266678889 is 98887666221.

It is an interprime number because it is at equal distance from previous prime (12266678867) and next prime (12266678911).

It is not a de Polignac number, because 12266678889 - 2⁷ = 12266678761 is a prime.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (12266678819) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85044 + ... + 178229.

It is an arithmetic number, because the mean of its divisors is an integer number (766653888).

Almost surely, 2^12266678889 is an apocalyptic number.

It is an amenable number.

12266678889 is a deficient number, since it is larger than the sum of its proper divisors (6133014423).

12266678889 is a wasteful number, since it uses less digits than its factorization.

12266678889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263477 (or 263474 counting only the distinct ones).

The product of its digits is 27869184, while the sum is 63.

The spelling of 12266678889 in words is "twelve billion, two hundred sixty-six million, six hundred seventy-eight thousand, eight hundred eighty-nine".