71905040052563 has 2 divisors, whose sum is σ = 71905040052564. Its totient is φ = 71905040052562.

The previous prime is 71905040052539. The next prime is 71905040052611. The reversal of 71905040052563 is 36525004050917.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71905040052563 - 2⁶ = 71905040052499 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (71905040052763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35952520026281 + 35952520026282.

It is an arithmetic number, because the mean of its divisors is an integer number (35952520026282).

Almost surely, 2^{71905040052563} is an apocalyptic number.

71905040052563 is a deficient number, since it is larger than the sum of its proper divisors (1).

71905040052563 is an equidigital number, since it uses as much as digits as its factorization.

71905040052563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134000, while the sum is 47.

The spelling of 71905040052563 in words is "seventy-one trillion, nine hundred five billion, forty million, fifty-two thousand, five hundred sixty-three".