91093382071 has 2 divisors, whose sum is σ = 91093382072. Its totient is φ = 91093382070.

The previous prime is 91093382057. The next prime is 91093382101. The reversal of 91093382071 is 17028339019.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 91093382071 - 2⁹ = 91093381559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91093382671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45546691035 + 45546691036.

It is an arithmetic number, because the mean of its divisors is an integer number (45546691036).

Almost surely, 2^91093382071 is an apocalyptic number.

91093382071 is a deficient number, since it is larger than the sum of its proper divisors (1).

91093382071 is an equidigital number, since it uses as much as digits as its factorization.

91093382071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 43.

The spelling of 91093382071 in words is "ninety-one billion, ninety-three million, three hundred eighty-two thousand, seventy-one".