5541194427891 has 16 divisors (see below), whose sum is σ = 7393791952800. Its totient is φ = 3691363834368.

The previous prime is 5541194427889. The next prime is 5541194427893. The reversal of 5541194427891 is 1987244911455.

5541194427891 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (5541194427889) and next prime (5541194427893).

It is not a de Polignac number, because 5541194427891 - 2¹ = 5541194427889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5541194427893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41562445 + ... + 41695553.

It is an arithmetic number, because the mean of its divisors is an integer number (462111997050).

Almost surely, 2^{5541194427891} is an apocalyptic number.

5541194427891 is a deficient number, since it is larger than the sum of its proper divisors (1852597524909).

5541194427891 is a wasteful number, since it uses less digits than its factorization.

5541194427891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143398.

The product of its digits is 14515200, while the sum is 60.

The spelling of 5541194427891 in words is "five trillion, five hundred forty-one billion, one hundred ninety-four million, four hundred twenty-seven thousand, eight hundred ninety-one".