71051067811 has 2 divisors, whose sum is σ = 71051067812. Its totient is φ = 71051067810.

The previous prime is 71051067781. The next prime is 71051067839. The reversal of 71051067811 is 11876015017.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71051067811 - 2⁷ = 71051067683 is a prime.

It is not a weakly prime, because it can be changed into another prime (71051067881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35525533905 + 35525533906.

It is an arithmetic number, because the mean of its divisors is an integer number (35525533906).

Almost surely, 2^71051067811 is an apocalyptic number.

71051067811 is a deficient number, since it is larger than the sum of its proper divisors (1).

71051067811 is an equidigital number, since it uses as much as digits as its factorization.

71051067811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11760, while the sum is 37.

The spelling of 71051067811 in words is "seventy-one billion, fifty-one million, sixty-seven thousand, eight hundred eleven".