5238685913 has 2 divisors, whose sum is σ = 5238685914. Its totient is φ = 5238685912.

The previous prime is 5238685853. The next prime is 5238685927. The reversal of 5238685913 is 3195868325.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4013475904 + 1225210009 = 63352^2 + 35003^2 .

It is a cyclic number.

It is not a de Polignac number, because 5238685913 - 2¹⁴ = 5238669529 is a prime.

It is not a weakly prime, because it can be changed into another prime (5238685993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2619342956 + 2619342957.

It is an arithmetic number, because the mean of its divisors is an integer number (2619342957).

Almost surely, 2^5238685913 is an apocalyptic number.

It is an amenable number.

5238685913 is a deficient number, since it is larger than the sum of its proper divisors (1).

5238685913 is an equidigital number, since it uses as much as digits as its factorization.

5238685913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1555200, while the sum is 50.

The square root of 5238685913 is about 72378.7670038665. The cubic root of 5238685913 is about 1736.7639144035.

The spelling of 5238685913 in words is "five billion, two hundred thirty-eight million, six hundred eighty-five thousand, nine hundred thirteen".