7643342771 has 2 divisors, whose sum is σ = 7643342772. Its totient is φ = 7643342770.

The previous prime is 7643342731. The next prime is 7643342779. The reversal of 7643342771 is 1772433467.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7643342771 - 2¹⁰ = 7643341747 is a prime.

It is not a weakly prime, because it can be changed into another prime (7643342779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3821671385 + 3821671386.

It is an arithmetic number, because the mean of its divisors is an integer number (3821671386).

Almost surely, 2^7643342771 is an apocalyptic number.

7643342771 is a deficient number, since it is larger than the sum of its proper divisors (1).

7643342771 is an equidigital number, since it uses as much as digits as its factorization.

7643342771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 592704, while the sum is 44.

The square root of 7643342771 is about 87426.2132944119. The cubic root of 7643342771 is about 1969.8256067119.

The spelling of 7643342771 in words is "seven billion, six hundred forty-three million, three hundred forty-two thousand, seven hundred seventy-one".