4991885965 has 32 divisors (see below), whose sum is σ = 6583078656. Its totient is φ = 3603778560.

The previous prime is 4991885947. The next prime is 4991885981. The reversal of 4991885965 is 5695881994.

It is not a de Polignac number, because 4991885965 - 2⁷ = 4991885837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4991885897 and 4991885906.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6262947 + ... + 6263743.

It is an arithmetic number, because the mean of its divisors is an integer number (205721208).

Almost surely, 2^4991885965 is an apocalyptic number.

It is an amenable number.

4991885965 is a deficient number, since it is larger than the sum of its proper divisors (1591192691).

4991885965 is a wasteful number, since it uses less digits than its factorization.

4991885965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1509.

The product of its digits is 27993600, while the sum is 64.

The square root of 4991885965 is about 70653.2799309416. The cubic root of 4991885965 is about 1709.0504588880.

The spelling of 4991885965 in words is "four billion, nine hundred ninety-one million, eight hundred eighty-five thousand, nine hundred sixty-five".