12809764553 has 2 divisors, whose sum is σ = 12809764554. Its totient is φ = 12809764552.

The previous prime is 12809764531. The next prime is 12809764573. The reversal of 12809764553 is 35546790821.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12273980944 + 535783609 = 110788^2 + 23147^2 .

It is a cyclic number.

It is not a de Polignac number, because 12809764553 - 2³⁰ = 11736022729 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (12809764573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6404882276 + 6404882277.

It is an arithmetic number, because the mean of its divisors is an integer number (6404882277).

It is a 1-persistent number, because it is pandigital, but 2⋅12809764553 = 25619529106 is not.

Almost surely, 2^12809764553 is an apocalyptic number.

It is an amenable number.

12809764553 is a deficient number, since it is larger than the sum of its proper divisors (1).

12809764553 is an equidigital number, since it uses as much as digits as its factorization.

12809764553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1814400, while the sum is 50.

The spelling of 12809764553 in words is "twelve billion, eight hundred nine million, seven hundred sixty-four thousand, five hundred fifty-three".