4461891863 has 12 divisors (see below), whose sum is σ = 5270746968. Its totient is φ = 3744243360.

The previous prime is 4461891857. The next prime is 4461891869. The reversal of 4461891863 is 3681981644.

It is an interprime number because it is at equal distance from previous prime (4461891857) and next prime (4461891869).

It is not a de Polignac number, because 4461891863 - 2²⁴ = 4445114647 is a prime.

It is a super-2 number, since 2×4461891863² = 39816957994211221538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4461891869) 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, 1198220 + ... + 1201937.

It is an arithmetic number, because the mean of its divisors is an integer number (439228914).

Almost surely, 2^4461891863 is an apocalyptic number.

4461891863 is a deficient number, since it is larger than the sum of its proper divisors (808855105).

4461891863 is a wasteful number, since it uses less digits than its factorization.

4461891863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2400194 (or 2400181 counting only the distinct ones).

The product of its digits is 995328, while the sum is 50.

The square root of 4461891863 is about 66797.3941333043. The cubic root of 4461891863 is about 1646.2900254304.

The spelling of 4461891863 in words is "four billion, four hundred sixty-one million, eight hundred ninety-one thousand, eight hundred sixty-three".