7097605251809 has 2 divisors, whose sum is σ = 7097605251810. Its totient is φ = 7097605251808.

The previous prime is 7097605251773. The next prime is 7097605251827. The reversal of 7097605251809 is 9081525067907.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5685244140625 + 1412361111184 = 2384375^2 + 1188428^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7097605251809 is a prime.

It is not a weakly prime, because it can be changed into another prime (7097605251839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3548802625904 + 3548802625905.

It is an arithmetic number, because the mean of its divisors is an integer number (3548802625905).

Almost surely, 2^{7097605251809} is an apocalyptic number.

It is an amenable number.

7097605251809 is a deficient number, since it is larger than the sum of its proper divisors (1).

7097605251809 is an equidigital number, since it uses as much as digits as its factorization.

7097605251809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9525600, while the sum is 59.

The spelling of 7097605251809 in words is "seven trillion, ninety-seven billion, six hundred five million, two hundred fifty-one thousand, eight hundred nine".