12667743425172 has 48 divisors (see below), whose sum is σ = 32254881523200. Its totient is φ = 3837553409760.

The previous prime is 12667743425107. The next prime is 12667743425177. The reversal of 12667743425172 is 27152434776621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12667743425177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14019222 + ... + 14895437.

It is an arithmetic number, because the mean of its divisors is an integer number (671976698400).

Almost surely, 2^{12667743425172} is an apocalyptic number.

12667743425172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12667743425172 is an abundant number, since it is smaller than the sum of its proper divisors (19587138098028).

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

12667743425172 is a wasteful number, since it uses less digits than its factorization.

12667743425172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28917996 (or 28917994 counting only the distinct ones).

The product of its digits is 23708160, while the sum is 57.

The spelling of 12667743425172 in words is "twelve trillion, six hundred sixty-seven billion, seven hundred forty-three million, four hundred twenty-five thousand, one hundred seventy-two".