71444257630507 has 2 divisors, whose sum is σ = 71444257630508. Its totient is φ = 71444257630506.

The previous prime is 71444257630441. The next prime is 71444257630511. The reversal of 71444257630507 is 70503675244417.

It is a strong prime.

It is an emirp because it is prime and its reverse (70503675244417) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71444257630507 - 2³⁵ = 71409897892139 is a prime.

It is not a weakly prime, because it can be changed into another prime (71444257630567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35722128815253 + 35722128815254.

It is an arithmetic number, because the mean of its divisors is an integer number (35722128815254).

Almost surely, 2^{71444257630507} is an apocalyptic number.

71444257630507 is a deficient number, since it is larger than the sum of its proper divisors (1).

71444257630507 is an equidigital number, since it uses as much as digits as its factorization.

71444257630507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19756800, while the sum is 55.

The spelling of 71444257630507 in words is "seventy-one trillion, four hundred forty-four billion, two hundred fifty-seven million, six hundred thirty thousand, five hundred seven".