71312832067 has 2 divisors, whose sum is σ = 71312832068. Its totient is φ = 71312832066.

The previous prime is 71312832037. The next prime is 71312832113. The reversal of 71312832067 is 76023821317.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71312832067 is a prime.

It is a super-2 number, since 2×71312832067² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (71312832037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35656416033 + 35656416034.

It is an arithmetic number, because the mean of its divisors is an integer number (35656416034).

Almost surely, 2^71312832067 is an apocalyptic number.

71312832067 is a deficient number, since it is larger than the sum of its proper divisors (1).

71312832067 is an equidigital number, since it uses as much as digits as its factorization.

71312832067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 40.

The spelling of 71312832067 in words is "seventy-one billion, three hundred twelve million, eight hundred thirty-two thousand, sixty-seven".