71311423567 has 2 divisors, whose sum is σ = 71311423568. Its totient is φ = 71311423566.

The previous prime is 71311423559. The next prime is 71311423583. The reversal of 71311423567 is 76532411317.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71311423567 - 2³ = 71311423559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71311423517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35655711783 + 35655711784.

It is an arithmetic number, because the mean of its divisors is an integer number (35655711784).

Almost surely, 2^71311423567 is an apocalyptic number.

71311423567 is a deficient number, since it is larger than the sum of its proper divisors (1).

71311423567 is an equidigital number, since it uses as much as digits as its factorization.

71311423567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 40.

The spelling of 71311423567 in words is "seventy-one billion, three hundred eleven million, four hundred twenty-three thousand, five hundred sixty-seven".