71623863163 has 2 divisors, whose sum is σ = 71623863164. Its totient is φ = 71623863162.

The previous prime is 71623863119. The next prime is 71623863187. The reversal of 71623863163 is 36136832617.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71623863163 is a prime.

It is not a weakly prime, because it can be changed into another prime (71623863263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35811931581 + 35811931582.

It is an arithmetic number, because the mean of its divisors is an integer number (35811931582).

Almost surely, 2^71623863163 is an apocalyptic number.

71623863163 is a deficient number, since it is larger than the sum of its proper divisors (1).

71623863163 is an equidigital number, since it uses as much as digits as its factorization.

71623863163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 46.

The spelling of 71623863163 in words is "seventy-one billion, six hundred twenty-three million, eight hundred sixty-three thousand, one hundred sixty-three".