5185938526909 has 24 divisors (see below), whose sum is σ = 6092735276376. Its totient is φ = 4400802000000.

The previous prime is 5185938526877. The next prime is 5185938526931. The reversal of 5185938526909 is 9096258395815.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 324839582809 + 4861098944100 = 569947^2 + 2204790^2 .

It is not a de Polignac number, because 5185938526909 - 2⁵ = 5185938526877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5185938529909) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131133679 + ... + 131173219.

It is an arithmetic number, because the mean of its divisors is an integer number (253863969849).

Almost surely, 2^{5185938526909} is an apocalyptic number.

It is an amenable number.

5185938526909 is a deficient number, since it is larger than the sum of its proper divisors (906796749467).

5185938526909 is a wasteful number, since it uses less digits than its factorization.

5185938526909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66157 (or 66150 counting only the distinct ones).

The product of its (nonzero) digits is 209952000, while the sum is 70.

The spelling of 5185938526909 in words is "five trillion, one hundred eighty-five billion, nine hundred thirty-eight million, five hundred twenty-six thousand, nine hundred nine".