5128384549 has 2 divisors, whose sum is σ = 5128384550. Its totient is φ = 5128384548.

The previous prime is 5128384537. The next prime is 5128384553. The reversal of 5128384549 is 9454838215.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4585727524 + 542657025 = 67718^2 + 23295^2 .

It is a cyclic number.

It is not a de Polignac number, because 5128384549 - 2⁵ = 5128384517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5128384249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2564192274 + 2564192275.

It is an arithmetic number, because the mean of its divisors is an integer number (2564192275).

Almost surely, 2^5128384549 is an apocalyptic number.

It is an amenable number.

5128384549 is a deficient number, since it is larger than the sum of its proper divisors (1).

5128384549 is an equidigital number, since it uses as much as digits as its factorization.

5128384549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1382400, while the sum is 49.

The square root of 5128384549 is about 71612.7401305103. The cubic root of 5128384549 is about 1724.4880703395.

The spelling of 5128384549 in words is "five billion, one hundred twenty-eight million, three hundred eighty-four thousand, five hundred forty-nine".