12655768973 has 2 divisors, whose sum is σ = 12655768974. Its totient is φ = 12655768972.

The previous prime is 12655768969. The next prime is 12655769011. The reversal of 12655768973 is 37986755621.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10240832809 + 2414936164 = 101197^2 + 49142^2 .

It is a cyclic number.

It is not a de Polignac number, because 12655768973 - 2² = 12655768969 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12655768903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6327884486 + 6327884487.

It is an arithmetic number, because the mean of its divisors is an integer number (6327884487).

Almost surely, 2^12655768973 is an apocalyptic number.

It is an amenable number.

12655768973 is a deficient number, since it is larger than the sum of its proper divisors (1).

12655768973 is an equidigital number, since it uses as much as digits as its factorization.

12655768973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19051200, while the sum is 59.

The spelling of 12655768973 in words is "twelve billion, six hundred fifty-five million, seven hundred sixty-eight thousand, nine hundred seventy-three".