5180209866 has 24 divisors (see below), whose sum is σ = 12087156900. Its totient is φ = 1593910656.

The previous prime is 5180209817. The next prime is 5180209889. The reversal of 5180209866 is 6689020815.

It can be written as a sum of positive squares in 2 ways, for example, as 4590740025 + 589469841 = 67755^2 + 24279^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11068591 + ... + 11069058.

Almost surely, 2^5180209866 is an apocalyptic number.

5180209866 is an abundant number, since it is smaller than the sum of its proper divisors (6906947034).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5180209866 is a wasteful number, since it uses less digits than its factorization.

5180209866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22137670 (or 22137667 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 5180209866 is about 71973.6748123923. The cubic root of 5180209866 is about 1730.2775976516.

The spelling of 5180209866 in words is "five billion, one hundred eighty million, two hundred nine thousand, eight hundred sixty-six".