91683442608 has 80 divisors (see below), whose sum is σ = 238408240896. Its totient is φ = 30360229120.

The previous prime is 91683442573. The next prime is 91683442621. The reversal of 91683442608 is 80624438619.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12543691 + ... + 12550997.

Almost surely, 2^91683442608 is an apocalyptic number.

It is an amenable number.

91683442608 is an abundant number, since it is smaller than the sum of its proper divisors (146724798288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91683442608 is a wasteful number, since it uses less digits than its factorization.

91683442608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9002 (or 8996 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 51.

The spelling of 91683442608 in words is "ninety-one billion, six hundred eighty-three million, four hundred forty-two thousand, six hundred eight".