71000634247 has 2 divisors, whose sum is σ = 71000634248. Its totient is φ = 71000634246.

The previous prime is 71000634227. The next prime is 71000634259. The reversal of 71000634247 is 74243600017.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71000634247 - 2³¹ = 68853150599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71000634227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35500317123 + 35500317124.

It is an arithmetic number, because the mean of its divisors is an integer number (35500317124).

Almost surely, 2^71000634247 is an apocalyptic number.

71000634247 is a deficient number, since it is larger than the sum of its proper divisors (1).

71000634247 is an equidigital number, since it uses as much as digits as its factorization.

71000634247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 34.

The spelling of 71000634247 in words is "seventy-one billion, six hundred thirty-four thousand, two hundred forty-seven".