71143035427 has 2 divisors, whose sum is σ = 71143035428. Its totient is φ = 71143035426.

The previous prime is 71143035407. The next prime is 71143035527. The reversal of 71143035427 is 72453034117.

It is a weak prime.

It is an emirp because it is prime and its reverse (72453034117) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71143035427 is a prime.

It is a super-2 number, since 2×71143035427² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (71143035407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35571517713 + 35571517714.

It is an arithmetic number, because the mean of its divisors is an integer number (35571517714).

Almost surely, 2^71143035427 is an apocalyptic number.

71143035427 is a deficient number, since it is larger than the sum of its proper divisors (1).

71143035427 is an equidigital number, since it uses as much as digits as its factorization.

71143035427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70560, while the sum is 37.

The spelling of 71143035427 in words is "seventy-one billion, one hundred forty-three million, thirty-five thousand, four hundred twenty-seven".