538191200489 has 4 divisors (see below), whose sum is σ = 538196835924. Its totient is φ = 538185565056.

The previous prime is 538191200471. The next prime is 538191200501. The reversal of 538191200489 is 984002191835.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 252305290000 + 285885910489 = 502300^2 + 534683^2 .

It is a cyclic number.

It is not a de Polignac number, because 538191200489 - 2²⁴ = 538174423273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (538091200489) 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 in 3 ways as a sum of consecutive naturals, for example, 2671952 + ... + 2866305.

It is an arithmetic number, because the mean of its divisors is an integer number (134549208981).

Almost surely, 2^538191200489 is an apocalyptic number.

It is an amenable number.

538191200489 is a deficient number, since it is larger than the sum of its proper divisors (5635435).

538191200489 is an equidigital number, since it uses as much as digits as its factorization.

538191200489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5635434.

The product of its (nonzero) digits is 622080, while the sum is 50.

The spelling of 538191200489 in words is "five hundred thirty-eight billion, one hundred ninety-one million, two hundred thousand, four hundred eighty-nine".