7971063911 has 2 divisors, whose sum is σ = 7971063912. Its totient is φ = 7971063910.

The previous prime is 7971063889. The next prime is 7971063923. The reversal of 7971063911 is 1193601797.

It is a strong prime.

It is an emirp because it is prime and its reverse (1193601797) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7971063911 - 2⁶ = 7971063847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7971063211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3985531955 + 3985531956.

It is an arithmetic number, because the mean of its divisors is an integer number (3985531956).

Almost surely, 2^7971063911 is an apocalyptic number.

7971063911 is a deficient number, since it is larger than the sum of its proper divisors (1).

7971063911 is an equidigital number, since it uses as much as digits as its factorization.

7971063911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 71442, while the sum is 44.

The square root of 7971063911 is about 89280.8149100354. The cubic root of 7971063911 is about 1997.5857461117.

The spelling of 7971063911 in words is "seven billion, nine hundred seventy-one million, sixty-three thousand, nine hundred eleven".