71564472063 has 48 divisors (see below), whose sum is σ = 119178259200. Its totient is φ = 40534905600.

The previous prime is 71564472043. The next prime is 71564472071. The reversal of 71564472063 is 36027446517.

71564472063 is a `hidden beast` number, since 7 + 1 + 564 + 4 + 7 + 20 + 63 = 666.

It is not a de Polignac number, because 71564472063 - 2⁸ = 71564471807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71564472013) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5764663 + ... + 5777063.

It is an arithmetic number, because the mean of its divisors is an integer number (2482880400).

Almost surely, 2^71564472063 is an apocalyptic number.

71564472063 is a deficient number, since it is larger than the sum of its proper divisors (47613787137).

71564472063 is a wasteful number, since it uses less digits than its factorization.

71564472063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13212 (or 13209 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The spelling of 71564472063 in words is "seventy-one billion, five hundred sixty-four million, four hundred seventy-two thousand, sixty-three".