12676681205 has 4 divisors (see below), whose sum is σ = 15212017452. Its totient is φ = 10141344960.

The previous prime is 12676681141. The next prime is 12676681247. The reversal of 12676681205 is 50218667621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7615354756 + 5061326449 = 87266^2 + 71143^2 .

It is not a de Polignac number, because 12676681205 - 2⁶ = 12676681141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1267668116 + ... + 1267668125.

It is an arithmetic number, because the mean of its divisors is an integer number (3803004363).

Almost surely, 2^12676681205 is an apocalyptic number.

It is an amenable number.

12676681205 is a deficient number, since it is larger than the sum of its proper divisors (2535336247).

12676681205 is an equidigital number, since it uses as much as digits as its factorization.

12676681205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2535336246.

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 12676681205 in words is "twelve billion, six hundred seventy-six million, six hundred eighty-one thousand, two hundred five".