12808587497 has 2 divisors, whose sum is σ = 12808587498. Its totient is φ = 12808587496.

The previous prime is 12808587419. The next prime is 12808587551. The reversal of 12808587497 is 79478580821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11502777001 + 1305810496 = 107251^2 + 36136^2 .

It is a cyclic number.

It is not a de Polignac number, because 12808587497 - 2²⁸ = 12540152041 is a prime.

It is not a weakly prime, because it can be changed into another prime (12808587697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6404293748 + 6404293749.

It is an arithmetic number, because the mean of its divisors is an integer number (6404293749).

Almost surely, 2^12808587497 is an apocalyptic number.

It is an amenable number.

12808587497 is a deficient number, since it is larger than the sum of its proper divisors (1).

12808587497 is an equidigital number, since it uses as much as digits as its factorization.

12808587497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9031680, while the sum is 59.

The spelling of 12808587497 in words is "twelve billion, eight hundred eight million, five hundred eighty-seven thousand, four hundred ninety-seven".