538638755071 has 2 divisors, whose sum is σ = 538638755072. Its totient is φ = 538638755070.

The previous prime is 538638754991. The next prime is 538638755077. The reversal of 538638755071 is 170557836835.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 538638755071 - 2²⁷ = 538504537343 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 538638754997 and 538638755015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (538638755077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269319377535 + 269319377536.

It is an arithmetic number, because the mean of its divisors is an integer number (269319377536).

Almost surely, 2^538638755071 is an apocalyptic number.

538638755071 is a deficient number, since it is larger than the sum of its proper divisors (1).

538638755071 is an equidigital number, since it uses as much as digits as its factorization.

538638755071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168000, while the sum is 58.

The spelling of 538638755071 in words is "five hundred thirty-eight billion, six hundred thirty-eight million, seven hundred fifty-five thousand, seventy-one".