12813422477 has 2 divisors, whose sum is σ = 12813422478. Its totient is φ = 12813422476.

The previous prime is 12813422443. The next prime is 12813422491. The reversal of 12813422477 is 77422431821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10480435876 + 2332986601 = 102374^2 + 48301^2 .

It is a cyclic number.

It is not a de Polignac number, because 12813422477 - 2³⁰ = 11739680653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12813422077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6406711238 + 6406711239.

It is an arithmetic number, because the mean of its divisors is an integer number (6406711239).

Almost surely, 2^12813422477 is an apocalyptic number.

It is an amenable number.

12813422477 is a deficient number, since it is larger than the sum of its proper divisors (1).

12813422477 is an equidigital number, since it uses as much as digits as its factorization.

12813422477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 150528, while the sum is 41.

The spelling of 12813422477 in words is "twelve billion, eight hundred thirteen million, four hundred twenty-two thousand, four hundred seventy-seven".