12808001057 has 2 divisors, whose sum is σ = 12808001058. Its totient is φ = 12808001056.

The previous prime is 12808001047. The next prime is 12808001123. The reversal of 12808001057 is 75010080821.

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., 8331855841 + 4476145216 = 91279^2 + 66904^2 .

It is a cyclic number.

It is not a de Polignac number, because 12808001057 - 2⁸ = 12808000801 is a prime.

It is a super-2 number, since 2×12808001057² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12808001047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6404000528 + 6404000529.

It is an arithmetic number, because the mean of its divisors is an integer number (6404000529).

Almost surely, 2^12808001057 is an apocalyptic number.

It is an amenable number.

12808001057 is a deficient number, since it is larger than the sum of its proper divisors (1).

12808001057 is an equidigital number, since it uses as much as digits as its factorization.

12808001057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4480, while the sum is 32.

Adding to 12808001057 its reverse (75010080821), we get a palindrome (87818081878).

The spelling of 12808001057 in words is "twelve billion, eight hundred eight million, one thousand, fifty-seven".