5644395237 has 16 divisors (see below), whose sum is σ = 8113474880. Its totient is φ = 3469744512.

The previous prime is 5644395221. The next prime is 5644395241. The reversal of 5644395237 is 7325934465.

It is not a de Polignac number, because 5644395237 - 2⁴ = 5644395221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5644395217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40687 + ... + 113772.

It is an arithmetic number, because the mean of its divisors is an integer number (507092180).

Almost surely, 2^5644395237 is an apocalyptic number.

It is an amenable number.

5644395237 is a deficient number, since it is larger than the sum of its proper divisors (2469079643).

5644395237 is a wasteful number, since it uses less digits than its factorization.

5644395237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155412.

The product of its digits is 2721600, while the sum is 48.

The square root of 5644395237 is about 75129.1903124212. The cubic root of 5644395237 is about 1780.4883604044.

The spelling of 5644395237 in words is "five billion, six hundred forty-four million, three hundred ninety-five thousand, two hundred thirty-seven".