5644897917 has 16 divisors (see below), whose sum is σ = 7874157312. Its totient is φ = 3593358080.

The previous prime is 5644897903. The next prime is 5644897927. The reversal of 5644897917 is 7197984465.

It is not a de Polignac number, because 5644897917 - 2⁴ = 5644897901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5644897927) 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, 482448 + ... + 494009.

It is an arithmetic number, because the mean of its divisors is an integer number (492134832).

Almost surely, 2^5644897917 is an apocalyptic number.

It is an amenable number.

5644897917 is a deficient number, since it is larger than the sum of its proper divisors (2229259395).

5644897917 is a wasteful number, since it uses less digits than its factorization.

5644897917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976548.

The product of its digits is 15240960, while the sum is 60.

The square root of 5644897917 is about 75132.5356752985. The cubic root of 5644897917 is about 1780.5412145652.

The spelling of 5644897917 in words is "five billion, six hundred forty-four million, eight hundred ninety-seven thousand, nine hundred seventeen".