5180536398409 has 8 divisors (see below), whose sum is σ = 5251544930120. Its totient is φ = 5109529009536.

The previous prime is 5180536398391. The next prime is 5180536398463. The reversal of 5180536398409 is 9048936350815.

It can be written as a sum of positive squares in 4 ways, for example, as 976088672784 + 4204447725625 = 987972^2 + 2050475^2 .

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 5180536398409 - 2¹¹ = 5180536396361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5180536398809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13128739 + ... + 13517575.

It is an arithmetic number, because the mean of its divisors is an integer number (656443116265).

Almost surely, 2^{5180536398409} is an apocalyptic number.

It is an amenable number.

5180536398409 is a deficient number, since it is larger than the sum of its proper divisors (71008531711).

5180536398409 is a wasteful number, since it uses less digits than its factorization.

5180536398409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571419.

The product of its (nonzero) digits is 27993600, while the sum is 61.

The spelling of 5180536398409 in words is "five trillion, one hundred eighty billion, five hundred thirty-six million, three hundred ninety-eight thousand, four hundred nine".