538553374091 has 2 divisors, whose sum is σ = 538553374092. Its totient is φ = 538553374090.

The previous prime is 538553374067. The next prime is 538553374141. The reversal of 538553374091 is 190473355835.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 538553374091 - 2¹⁰ = 538553373067 is a prime.

It is not a weakly prime, because it can be changed into another prime (538553374031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269276687045 + 269276687046.

It is an arithmetic number, because the mean of its divisors is an integer number (269276687046).

Almost surely, 2^538553374091 is an apocalyptic number.

538553374091 is a deficient number, since it is larger than the sum of its proper divisors (1).

538553374091 is an equidigital number, since it uses as much as digits as its factorization.

538553374091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804000, while the sum is 53.

The spelling of 538553374091 in words is "five hundred thirty-eight billion, five hundred fifty-three million, three hundred seventy-four thousand, ninety-one".