91394634963605 has 32 divisors (see below), whose sum is σ = 111825493363584. Its totient is φ = 71683139696896.

The previous prime is 91394634963571. The next prime is 91394634963629. The reversal of 91394634963605 is 50636943649319.

It is a cyclic number.

It is not a de Polignac number, because 91394634963605 - 2³² = 91390339996309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5918184014 + ... + 5918199456.

It is an arithmetic number, because the mean of its divisors is an integer number (3494546667612).

Almost surely, 2^{91394634963605} is an apocalyptic number.

It is an amenable number.

91394634963605 is a deficient number, since it is larger than the sum of its proper divisors (20430858399979).

91394634963605 is a wasteful number, since it uses less digits than its factorization.

91394634963605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30565.

The product of its (nonzero) digits is 340122240, while the sum is 68.

The spelling of 91394634963605 in words is "ninety-one trillion, three hundred ninety-four billion, six hundred thirty-four million, nine hundred sixty-three thousand, six hundred five".