1308078799897 has 2 divisors, whose sum is σ = 1308078799898. Its totient is φ = 1308078799896.

The previous prime is 1308078799873. The next prime is 1308078799919. The reversal of 1308078799897 is 7989978708031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1106175959001 + 201902840896 = 1051749^2 + 449336^2 .

It is a cyclic number.

It is not a de Polignac number, because 1308078799897 - 2²⁷ = 1307944582169 is a prime.

It is a super-2 number, since 2×1308078799897² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1308078799817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 654039399948 + 654039399949.

It is an arithmetic number, because the mean of its divisors is an integer number (654039399949).

Almost surely, 2^{1308078799897} is an apocalyptic number.

It is an amenable number.

1308078799897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1308078799897 is an equidigital number, since it uses as much as digits as its factorization.

1308078799897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384072192, while the sum is 76.

The spelling of 1308078799897 in words is "one trillion, three hundred eight billion, seventy-eight million, seven hundred ninety-nine thousand, eight hundred ninety-seven".