538239719807 has 2 divisors, whose sum is σ = 538239719808. Its totient is φ = 538239719806.

The previous prime is 538239719791. The next prime is 538239719819. The reversal of 538239719807 is 708917932835.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 538239719807 - 2⁴ = 538239719791 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 538239719807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (538239719867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269119859903 + 269119859904.

It is an arithmetic number, because the mean of its divisors is an integer number (269119859904).

Almost surely, 2^538239719807 is an apocalyptic number.

538239719807 is a deficient number, since it is larger than the sum of its proper divisors (1).

538239719807 is an equidigital number, since it uses as much as digits as its factorization.

538239719807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22861440, while the sum is 62.

The spelling of 538239719807 in words is "five hundred thirty-eight billion, two hundred thirty-nine million, seven hundred nineteen thousand, eight hundred seven".