5209336649 has 6 divisors (see below), whose sum is σ = 5725965210. Its totient is φ = 4735760480.

The previous prime is 5209336637. The next prime is 5209336661. The reversal of 5209336649 is 9466339025.

It is an interprime number because it is at equal distance from previous prime (5209336637) and next prime (5209336661).

It can be written as a sum of positive squares in only one way, i.e., 5207065600 + 2271049 = 72160^2 + 1507^2 .

It is a de Polignac number, because none of the positive numbers 2^k-5209336649 is a prime.

It is a super-2 number, since 2×5209336649² = 54274376645229098402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5209336049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21526064 + ... + 21526305.

It is an arithmetic number, because the mean of its divisors is an integer number (954327535).

Almost surely, 2^5209336649 is an apocalyptic number.

It is an amenable number.

5209336649 is a deficient number, since it is larger than the sum of its proper divisors (516628561).

5209336649 is a wasteful number, since it uses less digits than its factorization.

5209336649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43052391 (or 43052380 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 47.

The square root of 5209336649 is about 72175.7344888156. The cubic root of 5209336649 is about 1733.5144843668.

The spelling of 5209336649 in words is "five billion, two hundred nine million, three hundred thirty-six thousand, six hundred forty-nine".