4499669943 has 24 divisors (see below), whose sum is σ = 6596272800. Its totient is φ = 2955193920.

The previous prime is 4499669917. The next prime is 4499669947. The reversal of 4499669943 is 3499669944.

4499669943 is a `hidden beast` number, since 449 + 9 + 66 + 99 + 43 = 666.

It is not a de Polignac number, because 4499669943 - 2²¹ = 4497572791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4499669947) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1243605 + ... + 1247217.

It is an arithmetic number, because the mean of its divisors is an integer number (274844700).

Almost surely, 2^4499669943 is an apocalyptic number.

4499669943 is a deficient number, since it is larger than the sum of its proper divisors (2096602857).

4499669943 is a wasteful number, since it uses less digits than its factorization.

4499669943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5639 (or 5636 counting only the distinct ones).

The product of its digits is 45349632, while the sum is 63.

The square root of 4499669943 is about 67079.5791802543. The cubic root of 4499669943 is about 1650.9232596011.

Subtracting from 4499669943 its reverse (3499669944), we obtain a palindrome (999999999).

The spelling of 4499669943 in words is "four billion, four hundred ninety-nine million, six hundred sixty-nine thousand, nine hundred forty-three".