71800580563 has 2 divisors, whose sum is σ = 71800580564. Its totient is φ = 71800580562.

The previous prime is 71800580513. The next prime is 71800580609. The reversal of 71800580563 is 36508500817.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71800580563 - 2¹⁷ = 71800449491 is a prime.

It is not a weakly prime, because it can be changed into another prime (71800580513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35900290281 + 35900290282.

It is an arithmetic number, because the mean of its divisors is an integer number (35900290282).

Almost surely, 2^71800580563 is an apocalyptic number.

71800580563 is a deficient number, since it is larger than the sum of its proper divisors (1).

71800580563 is an equidigital number, since it uses as much as digits as its factorization.

71800580563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 201600, while the sum is 43.

The spelling of 71800580563 in words is "seventy-one billion, eight hundred million, five hundred eighty thousand, five hundred sixty-three".