5185630086409 has 2 divisors, whose sum is σ = 5185630086410. Its totient is φ = 5185630086408.

The previous prime is 5185630086397. The next prime is 5185630086431. The reversal of 5185630086409 is 9046800365815.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4788481827600 + 397148258809 = 2188260^2 + 630197^2 .

It is a cyclic number.

It is not a de Polignac number, because 5185630086409 - 2¹³ = 5185630078217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5185630086409.

It is not a weakly prime, because it can be changed into another prime (5185630081409) 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 as a sum of consecutive naturals, namely, 2592815043204 + 2592815043205.

It is an arithmetic number, because the mean of its divisors is an integer number (2592815043205).

Almost surely, 2^{5185630086409} is an apocalyptic number.

It is an amenable number.

5185630086409 is a deficient number, since it is larger than the sum of its proper divisors (1).

5185630086409 is an equidigital number, since it uses as much as digits as its factorization.

5185630086409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6220800, while the sum is 55.

The spelling of 5185630086409 in words is "five trillion, one hundred eighty-five billion, six hundred thirty million, eighty-six thousand, four hundred nine".