71079920563 has 2 divisors, whose sum is σ = 71079920564. Its totient is φ = 71079920562.

The previous prime is 71079920519. The next prime is 71079920573. The reversal of 71079920563 is 36502997017.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71079920563 - 2²⁹ = 70543049651 is a prime.

It is not a weakly prime, because it can be changed into another prime (71079920573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35539960281 + 35539960282.

It is an arithmetic number, because the mean of its divisors is an integer number (35539960282).

Almost surely, 2^71079920563 is an apocalyptic number.

71079920563 is a deficient number, since it is larger than the sum of its proper divisors (1).

71079920563 is an equidigital number, since it uses as much as digits as its factorization.

71079920563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 714420, while the sum is 49.

The spelling of 71079920563 in words is "seventy-one billion, seventy-nine million, nine hundred twenty thousand, five hundred sixty-three".