5381447191 has 4 divisors (see below), whose sum is σ = 5383631032. Its totient is φ = 5379263352.

The previous prime is 5381447161. The next prime is 5381447213. The reversal of 5381447191 is 1917441835.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 5381447191 - 2⁷ = 5381447063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5381447111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1088220 + ... + 1093153.

It is an arithmetic number, because the mean of its divisors is an integer number (1345907758).

Almost surely, 2^5381447191 is an apocalyptic number.

5381447191 is a deficient number, since it is larger than the sum of its proper divisors (2183841).

5381447191 is a wasteful number, since it uses less digits than its factorization.

5381447191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2183840.

The product of its digits is 120960, while the sum is 43.

The square root of 5381447191 is about 73358.3477935538. The cubic root of 5381447191 is about 1752.3991248154.

The spelling of 5381447191 in words is "five billion, three hundred eighty-one million, four hundred forty-seven thousand, one hundred ninety-one".