12677608965 has 32 divisors (see below), whose sum is σ = 23299626240. Its totient is φ = 5766050304.

The previous prime is 12677608961. The next prime is 12677608973. The reversal of 12677608965 is 56980677621.

It is not a de Polignac number, because 12677608965 - 2² = 12677608961 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12677608961) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 285760 + ... + 327129.

It is an arithmetic number, because the mean of its divisors is an integer number (728113320).

Almost surely, 2^12677608965 is an apocalyptic number.

12677608965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12677608965 is a deficient number, since it is larger than the sum of its proper divisors (10622017275).

12677608965 is a wasteful number, since it uses less digits than its factorization.

12677608965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613101.

The product of its (nonzero) digits is 7620480, while the sum is 57.

The spelling of 12677608965 in words is "twelve billion, six hundred seventy-seven million, six hundred eight thousand, nine hundred sixty-five".