91993083883 has 8 divisors (see below), whose sum is σ = 96855141200. Its totient is φ = 87133058208.

The previous prime is 91993083869. The next prime is 91993083937. The reversal of 91993083883 is 38838039919.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 91993083883 - 2⁵ = 91993083851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91993081883) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 414516 + ... + 596497.

It is an arithmetic number, because the mean of its divisors is an integer number (12106892650).

Almost surely, 2^91993083883 is an apocalyptic number.

91993083883 is a deficient number, since it is larger than the sum of its proper divisors (4862057317).

91993083883 is a wasteful number, since it uses less digits than its factorization.

91993083883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015821.

The product of its (nonzero) digits is 10077696, while the sum is 61.

The spelling of 91993083883 in words is "ninety-one billion, nine hundred ninety-three million, eighty-three thousand, eight hundred eighty-three".