4249664499 has 4 divisors (see below), whose sum is σ = 5666219336. Its totient is φ = 2833109664.

The previous prime is 4249664453. The next prime is 4249664527. The reversal of 4249664499 is 9944669424.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 4249664499 - 2⁷ = 4249664371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4249664099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 708277414 + ... + 708277419.

It is an arithmetic number, because the mean of its divisors is an integer number (1416554834).

Almost surely, 2^4249664499 is an apocalyptic number.

4249664499 is a deficient number, since it is larger than the sum of its proper divisors (1416554837).

4249664499 is a wasteful number, since it uses less digits than its factorization.

4249664499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416554836.

The product of its digits is 13436928, while the sum is 57.

The square root of 4249664499 is about 65189.4508260347. The cubic root of 4249664499 is about 1619.7632762623.

The spelling of 4249664499 in words is "four billion, two hundred forty-nine million, six hundred sixty-four thousand, four hundred ninety-nine".