5209748289 has 6 divisors (see below), whose sum is σ = 7525191986. Its totient is φ = 3473165520.

The previous prime is 5209748287. The next prime is 5209748293. The reversal of 5209748289 is 9828479025.

5209748289 is a `hidden beast` number, since 520 + 97 + 4 + 8 + 28 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5203458225 + 6290064 = 72135^2 + 2508^2 .

It is not a de Polignac number, because 5209748289 - 2¹ = 5209748287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5209748287) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 289430452 + ... + 289430469.

Almost surely, 2^5209748289 is an apocalyptic number.

It is an amenable number.

5209748289 is a deficient number, since it is larger than the sum of its proper divisors (2315443697).

5209748289 is a wasteful number, since it uses less digits than its factorization.

5209748289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578860927 (or 578860924 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The square root of 5209748289 is about 72178.5860834084. The cubic root of 5209748289 is about 1733.5601437381.

The spelling of 5209748289 in words is "five billion, two hundred nine million, seven hundred forty-eight thousand, two hundred eighty-nine".