12877146461 has 2 divisors, whose sum is σ = 12877146462. Its totient is φ = 12877146460.

The previous prime is 12877146449. The next prime is 12877146467. The reversal of 12877146461 is 16464177821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12867499225 + 9647236 = 113435^2 + 3106^2 .

It is a cyclic number.

It is not a de Polignac number, because 12877146461 - 2⁶ = 12877146397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12877146467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6438573230 + 6438573231.

It is an arithmetic number, because the mean of its divisors is an integer number (6438573231).

Almost surely, 2^12877146461 is an apocalyptic number.

It is an amenable number.

12877146461 is a deficient number, since it is larger than the sum of its proper divisors (1).

12877146461 is an equidigital number, since it uses as much as digits as its factorization.

12877146461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 451584, while the sum is 47.

The spelling of 12877146461 in words is "twelve billion, eight hundred seventy-seven million, one hundred forty-six thousand, four hundred sixty-one".