7288671220697 has 2 divisors, whose sum is σ = 7288671220698. Its totient is φ = 7288671220696.

The previous prime is 7288671220667. The next prime is 7288671220771. The reversal of 7288671220697 is 7960221768827.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4321995681481 + 2966675539216 = 2078941^2 + 1722404^2 .

It is an emirp because it is prime and its reverse (7960221768827) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7288671220697 - 2⁴² = 2890624709593 is a prime.

It is not a weakly prime, because it can be changed into another prime (7288671220667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3644335610348 + 3644335610349.

It is an arithmetic number, because the mean of its divisors is an integer number (3644335610349).

Almost surely, 2^{7288671220697} is an apocalyptic number.

It is an amenable number.

7288671220697 is a deficient number, since it is larger than the sum of its proper divisors (1).

7288671220697 is an equidigital number, since it uses as much as digits as its factorization.

7288671220697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56899584, while the sum is 65.

The spelling of 7288671220697 in words is "seven trillion, two hundred eighty-eight billion, six hundred seventy-one million, two hundred twenty thousand, six hundred ninety-seven".