91883433643 has 8 divisors (see below), whose sum is σ = 93048249168. Its totient is φ = 90719994144.

The previous prime is 91883433641. The next prime is 91883433673. The reversal of 91883433643 is 34633438819.

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

It is a cyclic number.

It is not a de Polignac number, because 91883433643 - 2¹ = 91883433641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91883433641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209280 + ... + 477037.

It is an arithmetic number, because the mean of its divisors is an integer number (11631031146).

Almost surely, 2^91883433643 is an apocalyptic number.

91883433643 is a deficient number, since it is larger than the sum of its proper divisors (1164815525).

91883433643 is a wasteful number, since it uses less digits than its factorization.

91883433643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688013.

The product of its digits is 4478976, while the sum is 52.

The spelling of 91883433643 in words is "ninety-one billion, eight hundred eighty-three million, four hundred thirty-three thousand, six hundred forty-three".