5127315850813 has 4 divisors (see below), whose sum is σ = 5521724762428. Its totient is φ = 4732906939200.

The previous prime is 5127315850799. The next prime is 5127315850837. The reversal of 5127315850813 is 3180585137215.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 287126648964 + 4840189201849 = 535842^2 + 2200043^2 .

It is a cyclic number.

It is not a de Polignac number, because 5127315850813 - 2³³ = 5118725916221 is a prime.

It is a super-4 number, since 4×5127315850813⁴ (a number of 52 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5127315856813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197204455788 + ... + 197204455813.

It is an arithmetic number, because the mean of its divisors is an integer number (1380431190607).

Almost surely, 2^{5127315850813} is an apocalyptic number.

It is an amenable number.

5127315850813 is a deficient number, since it is larger than the sum of its proper divisors (394408911615).

5127315850813 is a wasteful number, since it uses less digits than its factorization.

5127315850813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394408911614.

The product of its (nonzero) digits is 1008000, while the sum is 49.

The spelling of 5127315850813 in words is "five trillion, one hundred twenty-seven billion, three hundred fifteen million, eight hundred fifty thousand, eight hundred thirteen".