91696318223 has 4 divisors (see below), whose sum is σ = 91699189680. Its totient is φ = 91693446768.

The previous prime is 91696318211. The next prime is 91696318229. The reversal of 91696318223 is 32281369619.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 91696318223 - 2⁸ = 91696317967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91696318229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1387283 + ... + 1451876.

It is an arithmetic number, because the mean of its divisors is an integer number (22924797420).

Almost surely, 2^91696318223 is an apocalyptic number.

91696318223 is a deficient number, since it is larger than the sum of its proper divisors (2871457).

91696318223 is a wasteful number, since it uses less digits than its factorization.

91696318223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2871456.

The product of its digits is 839808, while the sum is 50.

The spelling of 91696318223 in words is "ninety-one billion, six hundred ninety-six million, three hundred eighteen thousand, two hundred twenty-three".