538450834586641 has 4 divisors (see below), whose sum is σ = 538450913964400. Its totient is φ = 538450755208884.

The previous prime is 538450834586617. The next prime is 538450834586711. The reversal of 538450834586641 is 146685438054835.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 538450834586641 - 2¹⁹ = 538450834062353 is a prime.

It is a super-2 number, since 2×538450834586641² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (538450834526641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28453611 + ... + 43433968.

It is an arithmetic number, because the mean of its divisors is an integer number (134612728491100).

Almost surely, 2^{538450834586641} is an apocalyptic number.

It is an amenable number.

538450834586641 is a deficient number, since it is larger than the sum of its proper divisors (79377759).

538450834586641 is an equidigital number, since it uses as much as digits as its factorization.

538450834586641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79377758.

The product of its (nonzero) digits is 1327104000, while the sum is 70.

The spelling of 538450834586641 in words is "five hundred thirty-eight trillion, four hundred fifty billion, eight hundred thirty-four million, five hundred eighty-six thousand, six hundred forty-one".