4144987247 has 4 divisors (see below), whose sum is σ = 4197455520. Its totient is φ = 4092518976.

The previous prime is 4144987241. The next prime is 4144987283. The reversal of 4144987247 is 7427894414.

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

It is a cyclic number.

It is not a de Polignac number, because 4144987247 - 2⁶ = 4144987183 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4144987195 and 4144987204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4144987241) 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, 26234018 + ... + 26234175.

It is an arithmetic number, because the mean of its divisors is an integer number (1049363880).

Almost surely, 2^4144987247 is an apocalyptic number.

4144987247 is a deficient number, since it is larger than the sum of its proper divisors (52468273).

4144987247 is an equidigital number, since it uses as much as digits as its factorization.

4144987247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52468272.

The product of its digits is 1806336, while the sum is 50.

The square root of 4144987247 is about 64381.5753690448. The cubic root of 4144987247 is about 1606.3532867374.

The spelling of 4144987247 in words is "four billion, one hundred forty-four million, nine hundred eighty-seven thousand, two hundred forty-seven".