12894172116 has 48 divisors (see below), whose sum is σ = 35493642240. Its totient is φ = 3565208160.

The previous prime is 12894172091. The next prime is 12894172139. The reversal of 12894172116 is 61127149821.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 2473236 + ... + 2478443.

It is an arithmetic number, because the mean of its divisors is an integer number (739450880).

Almost surely, 2^12894172116 is an apocalyptic number.

It is an amenable number.

12894172116 is an abundant number, since it is smaller than the sum of its proper divisors (22599470124).

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

12894172116 is a wasteful number, since it uses less digits than its factorization.

12894172116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4951724 (or 4951722 counting only the distinct ones).

The product of its digits is 48384, while the sum is 42.

The spelling of 12894172116 in words is "twelve billion, eight hundred ninety-four million, one hundred seventy-two thousand, one hundred sixteen".