91693892323 has 12 divisors (see below), whose sum is σ = 101826560920. Its totient is φ = 82498711680.

The previous prime is 91693892309. The next prime is 91693892393. The reversal of 91693892323 is 32329839619.

It is a happy number.

It is not a de Polignac number, because 91693892323 - 2⁹ = 91693891811 is a prime.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (91693892393) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3894453 + ... + 3917926.

Almost surely, 2^91693892323 is an apocalyptic number.

91693892323 is a deficient number, since it is larger than the sum of its proper divisors (10132668597).

91693892323 is a wasteful number, since it uses less digits than its factorization.

91693892323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7812498 (or 7812487 counting only the distinct ones).

The product of its digits is 3779136, while the sum is 55.

The spelling of 91693892323 in words is "ninety-one billion, six hundred ninety-three million, eight hundred ninety-two thousand, three hundred twenty-three".