4138267591 has 2 divisors, whose sum is σ = 4138267592. Its totient is φ = 4138267590.

The previous prime is 4138267577. The next prime is 4138267597. The reversal of 4138267591 is 1957628314.

4138267591 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4138267591 - 2¹⁹ = 4137743303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4138267597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2069133795 + 2069133796.

It is an arithmetic number, because the mean of its divisors is an integer number (2069133796).

Almost surely, 2^4138267591 is an apocalyptic number.

4138267591 is a deficient number, since it is larger than the sum of its proper divisors (1).

4138267591 is an equidigital number, since it uses as much as digits as its factorization.

4138267591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 46.

The square root of 4138267591 is about 64329.3680289182. The cubic root of 4138267591 is about 1605.4847694095.

The spelling of 4138267591 in words is "four billion, one hundred thirty-eight million, two hundred sixty-seven thousand, five hundred ninety-one".