71080890071 has 2 divisors, whose sum is σ = 71080890072. Its totient is φ = 71080890070.

The previous prime is 71080890053. The next prime is 71080890077. The reversal of 71080890071 is 17009808017.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71080890071 - 2⁶ = 71080890007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71080890077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35540445035 + 35540445036.

It is an arithmetic number, because the mean of its divisors is an integer number (35540445036).

Almost surely, 2^71080890071 is an apocalyptic number.

71080890071 is a deficient number, since it is larger than the sum of its proper divisors (1).

71080890071 is an equidigital number, since it uses as much as digits as its factorization.

71080890071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 41.

The spelling of 71080890071 in words is "seventy-one billion, eighty million, eight hundred ninety thousand, seventy-one".