71329649071 has 2 divisors, whose sum is σ = 71329649072. Its totient is φ = 71329649070.

The previous prime is 71329649057. The next prime is 71329649173. The reversal of 71329649071 is 17094692317.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71329649071 - 2¹⁷ = 71329517999 is a prime.

It is a super-2 number, since 2×71329649071² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71329646071) 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, 35664824535 + 35664824536.

It is an arithmetic number, because the mean of its divisors is an integer number (35664824536).

Almost surely, 2^71329649071 is an apocalyptic number.

71329649071 is a deficient number, since it is larger than the sum of its proper divisors (1).

71329649071 is an equidigital number, since it uses as much as digits as its factorization.

71329649071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 571536, while the sum is 49.

The spelling of 71329649071 in words is "seventy-one billion, three hundred twenty-nine million, six hundred forty-nine thousand, seventy-one".