91235565683 has 2 divisors, whose sum is σ = 91235565684. Its totient is φ = 91235565682.

The previous prime is 91235565667. The next prime is 91235565727. The reversal of 91235565683 is 38656553219.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 91235565683 - 2⁴ = 91235565667 is a prime.

It is not a weakly prime, because it can be changed into another prime (91235564683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45617782841 + 45617782842.

It is an arithmetic number, because the mean of its divisors is an integer number (45617782842).

Almost surely, 2^91235565683 is an apocalyptic number.

91235565683 is a deficient number, since it is larger than the sum of its proper divisors (1).

91235565683 is an equidigital number, since it uses as much as digits as its factorization.

91235565683 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832000, while the sum is 53.

The spelling of 91235565683 in words is "ninety-one billion, two hundred thirty-five million, five hundred sixty-five thousand, six hundred eighty-three".