5644631747 has 2 divisors, whose sum is σ = 5644631748. Its totient is φ = 5644631746.

The previous prime is 5644631677. The next prime is 5644631819. The reversal of 5644631747 is 7471364465.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5644631747 - 2¹⁴ = 5644615363 is a prime.

It is not a weakly prime, because it can be changed into another prime (5644631947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2822315873 + 2822315874.

It is an arithmetic number, because the mean of its divisors is an integer number (2822315874).

Almost surely, 2^5644631747 is an apocalyptic number.

5644631747 is a deficient number, since it is larger than the sum of its proper divisors (1).

5644631747 is an equidigital number, since it uses as much as digits as its factorization.

5644631747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1693440, while the sum is 47.

The square root of 5644631747 is about 75130.7643179543. The cubic root of 5644631747 is about 1780.5132285791.

The spelling of 5644631747 in words is "five billion, six hundred forty-four million, six hundred thirty-one thousand, seven hundred forty-seven".