12261469418 has 24 divisors (see below), whose sum is σ = 21095200224. Its totient is φ = 5331071240.

The previous prime is 12261469379. The next prime is 12261469447. The reversal of 12261469418 is 81496416221.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1095896 + ... + 1107027.

It is an arithmetic number, because the mean of its divisors is an integer number (878966676).

Almost surely, 2^12261469418 is an apocalyptic number.

12261469418 is a deficient number, since it is larger than the sum of its proper divisors (8833730806).

12261469418 is a wasteful number, since it uses less digits than its factorization.

12261469418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2202970 (or 2202959 counting only the distinct ones).

The product of its digits is 165888, while the sum is 44.

The spelling of 12261469418 in words is "twelve billion, two hundred sixty-one million, four hundred sixty-nine thousand, four hundred eighteen".