5389644769 has 2 divisors, whose sum is σ = 5389644770. Its totient is φ = 5389644768.

The previous prime is 5389644731. The next prime is 5389644773. The reversal of 5389644769 is 9674469835.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5145910225 + 243734544 = 71735^2 + 15612^2 .

It is a cyclic number.

It is not a de Polignac number, because 5389644769 - 2¹⁵ = 5389612001 is a prime.

It is a super-2 number, since 2×5389644769² = 58096541472018126722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5389644269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2694822384 + 2694822385.

It is an arithmetic number, because the mean of its divisors is an integer number (2694822385).

Almost surely, 2^5389644769 is an apocalyptic number.

It is an amenable number.

5389644769 is a deficient number, since it is larger than the sum of its proper divisors (1).

5389644769 is an equidigital number, since it uses as much as digits as its factorization.

5389644769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 39191040, while the sum is 61.

The square root of 5389644769 is about 73414.2000501265. The cubic root of 5389644769 is about 1753.2884853577.

The spelling of 5389644769 in words is "five billion, three hundred eighty-nine million, six hundred forty-four thousand, seven hundred sixty-nine".