5205001686 has 16 divisors (see below), whose sum is σ = 10413242544. Its totient is φ = 1734460704.

The previous prime is 5205001661. The next prime is 5205001709. The reversal of 5205001686 is 6861005025.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 113821 + ... + 152856.

It is an arithmetic number, because the mean of its divisors is an integer number (650827659).

Almost surely, 2^5205001686 is an apocalyptic number.

5205001686 is an abundant number, since it is smaller than the sum of its proper divisors (5208240858).

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

5205001686 is a wasteful number, since it uses less digits than its factorization.

5205001686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269935.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 5205001686 is about 72145.6976264004. The cubic root of 5205001686 is about 1733.0335014007.

The spelling of 5205001686 in words is "five billion, two hundred five million, one thousand, six hundred eighty-six".