5305721191 has 8 divisors (see below), whose sum is σ = 5409678960. Its totient is φ = 5201906112.

The previous prime is 5305721173. The next prime is 5305721219. The reversal of 5305721191 is 1911275035.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5305721191 - 2⁵ = 5305721159 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 (5305727191) 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 7 ways as a sum of consecutive naturals, for example, 41020 + ... + 110878.

It is an arithmetic number, because the mean of its divisors is an integer number (676209870).

Almost surely, 2^5305721191 is an apocalyptic number.

5305721191 is a deficient number, since it is larger than the sum of its proper divisors (103957769).

5305721191 is a wasteful number, since it uses less digits than its factorization.

5305721191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71345.

The product of its (nonzero) digits is 9450, while the sum is 34.

The square root of 5305721191 is about 72840.3815956506. The cubic root of 5305721191 is about 1744.1405324665.

The spelling of 5305721191 in words is "five billion, three hundred five million, seven hundred twenty-one thousand, one hundred ninety-one".