7326420641 has 2 divisors, whose sum is σ = 7326420642. Its totient is φ = 7326420640.

The previous prime is 7326420611. The next prime is 7326420643. The reversal of 7326420641 is 1460246237.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7238436241 + 87984400 = 85079^2 + 9380^2 .

It is an emirp because it is prime and its reverse (1460246237) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7326420641 - 2²² = 7322226337 is a prime.

It is a Sophie Germain prime.

Together with 7326420643, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (7326420643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3663210320 + 3663210321.

It is an arithmetic number, because the mean of its divisors is an integer number (3663210321).

Almost surely, 2^7326420641 is an apocalyptic number.

It is an amenable number.

7326420641 is a deficient number, since it is larger than the sum of its proper divisors (1).

7326420641 is an equidigital number, since it uses as much as digits as its factorization.

7326420641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 7326420641 is about 85594.5129140881. The cubic root of 7326420641 is about 1942.2149075608.

Adding to 7326420641 its reverse (1460246237), we get a palindrome (8786666878).

The spelling of 7326420641 in words is "seven billion, three hundred twenty-six million, four hundred twenty thousand, six hundred forty-one".