12512255185677 has 16 divisors (see below), whose sum is σ = 18072624704960. Its totient is φ = 7699849340976.

The previous prime is 12512255185649. The next prime is 12512255185679. The reversal of 12512255185677 is 77658155221521.

It is a happy number.

It is not a de Polignac number, because 12512255185677 - 2²³ = 12512246797069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12512255185679) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 949185883 + ... + 949199064.

It is an arithmetic number, because the mean of its divisors is an integer number (1129539044060).

Almost surely, 2^{12512255185677} is an apocalyptic number.

It is an amenable number.

12512255185677 is a deficient number, since it is larger than the sum of its proper divisors (5560369519283).

12512255185677 is an equidigital number, since it uses as much as digits as its factorization.

12512255185677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1898384989 (or 1898384963 counting only the distinct ones).

The product of its digits is 11760000, while the sum is 57.

The spelling of 12512255185677 in words is "twelve trillion, five hundred twelve billion, two hundred fifty-five million, one hundred eighty-five thousand, six hundred seventy-seven".