538816158731 has 2 divisors, whose sum is σ = 538816158732. Its totient is φ = 538816158730.

The previous prime is 538816158709. The next prime is 538816158733. The reversal of 538816158731 is 137851618835.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 538816158731 - 2³⁰ = 537742416907 is a prime.

It is a super-2 number, since 2×538816158731² (a number of 24 digits) contains 22 as substring.

Together with 538816158733, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (538816158733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269408079365 + 269408079366.

It is an arithmetic number, because the mean of its divisors is an integer number (269408079366).

Almost surely, 2^538816158731 is an apocalyptic number.

538816158731 is a deficient number, since it is larger than the sum of its proper divisors (1).

538816158731 is an equidigital number, since it uses as much as digits as its factorization.

538816158731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4838400, while the sum is 56.

The spelling of 538816158731 in words is "five hundred thirty-eight billion, eight hundred sixteen million, one hundred fifty-eight thousand, seven hundred thirty-one".