71623241447 has 2 divisors, whose sum is σ = 71623241448. Its totient is φ = 71623241446.

The previous prime is 71623241387. The next prime is 71623241449. The reversal of 71623241447 is 74414232617.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71623241447 - 2¹² = 71623237351 is a prime.

Together with 71623241449, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71623241449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35811620723 + 35811620724.

It is an arithmetic number, because the mean of its divisors is an integer number (35811620724).

Almost surely, 2^71623241447 is an apocalyptic number.

71623241447 is a deficient number, since it is larger than the sum of its proper divisors (1).

71623241447 is an equidigital number, since it uses as much as digits as its factorization.

71623241447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 225792, while the sum is 41.

The spelling of 71623241447 in words is "seventy-one billion, six hundred twenty-three million, two hundred forty-one thousand, four hundred forty-seven".