12761275683491 has 8 divisors (see below), whose sum is σ = 12801888187968. Its totient is φ = 12720726000000.

The previous prime is 12761275683487. The next prime is 12761275683529. The reversal of 12761275683491 is 19438657216721.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12761275683491 - 2² = 12761275683487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12761275683421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15298310 + ... + 16110891.

It is an arithmetic number, because the mean of its divisors is an integer number (1600236023496).

Almost surely, 2^{12761275683491} is an apocalyptic number.

12761275683491 is a deficient number, since it is larger than the sum of its proper divisors (40612504477).

12761275683491 is an equidigital number, since it uses as much as digits as its factorization.

12761275683491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31410493.

The product of its digits is 30481920, while the sum is 62.

The spelling of 12761275683491 in words is "twelve trillion, seven hundred sixty-one billion, two hundred seventy-five million, six hundred eighty-three thousand, four hundred ninety-one".