5481271591 has 8 divisors (see below), whose sum is σ = 5646337200. Its totient is φ = 5317700160.

The previous prime is 5481271589. The next prime is 5481271667. The reversal of 5481271591 is 1951721845.

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 5481271591 - 2¹ = 5481271589 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 (5481271511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 366096 + ... + 380773.

It is an arithmetic number, because the mean of its divisors is an integer number (705792150).

Almost surely, 2^5481271591 is an apocalyptic number.

5481271591 is a deficient number, since it is larger than the sum of its proper divisors (165065609).

5481271591 is a wasteful number, since it uses less digits than its factorization.

5481271591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747089.

The product of its digits is 100800, while the sum is 43.

The square root of 5481271591 is about 74035.6102899139. The cubic root of 5481271591 is about 1763.1683192635.

The spelling of 5481271591 in words is "five billion, four hundred eighty-one million, two hundred seventy-one thousand, five hundred ninety-one".