12869667144 has 24 divisors (see below), whose sum is σ = 34855348710. Its totient is φ = 4289889024.

The previous prime is 12869667137. The next prime is 12869667179. The reversal of 12869667144 is 44176696821.

It can be written as a sum of positive squares in only one way, i.e., 12649500900 + 220166244 = 112470^2 + 14838^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 89372617 + ... + 89372760.

Almost surely, 2^12869667144 is an apocalyptic number.

It is an amenable number.

12869667144 is an abundant number, since it is smaller than the sum of its proper divisors (21985681566).

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

12869667144 is a wasteful number, since it uses less digits than its factorization.

12869667144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178745389 (or 178745382 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The spelling of 12869667144 in words is "twelve billion, eight hundred sixty-nine million, six hundred sixty-seven thousand, one hundred forty-four".