5481891853 has 16 divisors (see below), whose sum is σ = 5610981376. Its totient is φ = 5354657280.

The previous prime is 5481891823. The next prime is 5481891887. The reversal of 5481891853 is 3581981845.

It is a cyclic number.

It is not a de Polignac number, because 5481891853 - 2¹³ = 5481883661 is a prime.

It is a super-2 number, since 2×5481891853² = 60102276575975547218, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5481891853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5481891803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3725908 + ... + 3727378.

It is an arithmetic number, because the mean of its divisors is an integer number (350686336).

Almost surely, 2^5481891853 is an apocalyptic number.

It is an amenable number.

5481891853 is a deficient number, since it is larger than the sum of its proper divisors (129089523).

5481891853 is a wasteful number, since it uses less digits than its factorization.

5481891853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2044.

The product of its digits is 1382400, while the sum is 52.

The square root of 5481891853 is about 74039.7991150705. The cubic root of 5481891853 is about 1763.2348236041.

The spelling of 5481891853 in words is "five billion, four hundred eighty-one million, eight hundred ninety-one thousand, eight hundred fifty-three".