5185557570817 has 8 divisors (see below), whose sum is σ = 5598513236456. Its totient is φ = 4774611422592.

The previous prime is 5185557570737. The next prime is 5185557570871. The reversal of 5185557570817 is 7180757555815.

It can be written as a sum of positive squares in 4 ways, for example, as 519789089296 + 4665768481521 = 720964^2 + 2160039^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5185557570817 - 2⁷ = 5185557570689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5185557573817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 502373988 + ... + 502384309.

It is an arithmetic number, because the mean of its divisors is an integer number (699814154557).

Almost surely, 2^{5185557570817} is an apocalyptic number.

It is an amenable number.

5185557570817 is a deficient number, since it is larger than the sum of its proper divisors (412955665639).

5185557570817 is a wasteful number, since it uses less digits than its factorization.

5185557570817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004758707.

The product of its (nonzero) digits is 68600000, while the sum is 64.

The spelling of 5185557570817 in words is "five trillion, one hundred eighty-five billion, five hundred fifty-seven million, five hundred seventy thousand, eight hundred seventeen".