71329422971 has 2 divisors, whose sum is σ = 71329422972. Its totient is φ = 71329422970.

The previous prime is 71329422949. The next prime is 71329422979. The reversal of 71329422971 is 17922492317.

It is a strong prime.

It is an emirp because it is prime and its reverse (17922492317) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71329422971 - 2¹⁸ = 71329160827 is a prime.

It is not a weakly prime, because it can be changed into another prime (71329422979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35664711485 + 35664711486.

It is an arithmetic number, because the mean of its divisors is an integer number (35664711486).

Almost surely, 2^71329422971 is an apocalyptic number.

71329422971 is a deficient number, since it is larger than the sum of its proper divisors (1).

71329422971 is an equidigital number, since it uses as much as digits as its factorization.

71329422971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 381024, while the sum is 47.

The spelling of 71329422971 in words is "seventy-one billion, three hundred twenty-nine million, four hundred twenty-two thousand, nine hundred seventy-one".