7643227073 has 2 divisors, whose sum is σ = 7643227074. Its totient is φ = 7643227072.

The previous prime is 7643227061. The next prime is 7643227087. The reversal of 7643227073 is 3707223467.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5495553424 + 2147673649 = 74132^2 + 46343^2 .

It is a cyclic number.

It is not a de Polignac number, because 7643227073 - 2⁴ = 7643227057 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7643227073.

It is not a weakly prime, because it can be changed into another prime (7643227003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3821613536 + 3821613537.

It is an arithmetic number, because the mean of its divisors is an integer number (3821613537).

Almost surely, 2^7643227073 is an apocalyptic number.

It is an amenable number.

7643227073 is a deficient number, since it is larger than the sum of its proper divisors (1).

7643227073 is an equidigital number, since it uses as much as digits as its factorization.

7643227073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 296352, while the sum is 41.

The square root of 7643227073 is about 87425.5516024920. The cubic root of 7643227073 is about 1969.8156675164.

The spelling of 7643227073 in words is "seven billion, six hundred forty-three million, two hundred twenty-seven thousand, seventy-three".