7643201339 has 2 divisors, whose sum is σ = 7643201340. Its totient is φ = 7643201338.

The previous prime is 7643201303. The next prime is 7643201347. The reversal of 7643201339 is 9331023467.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7643201339 - 2²⁴ = 7626424123 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (7643201359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3821600669 + 3821600670.

It is an arithmetic number, because the mean of its divisors is an integer number (3821600670).

Almost surely, 2^7643201339 is an apocalyptic number.

7643201339 is a deficient number, since it is larger than the sum of its proper divisors (1).

7643201339 is an equidigital number, since it uses as much as digits as its factorization.

7643201339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 38.

The square root of 7643201339 is about 87425.4044257160. The cubic root of 7643201339 is about 1969.8134567882.

The spelling of 7643201339 in words is "seven billion, six hundred forty-three million, two hundred one thousand, three hundred thirty-nine".