5481669841 has 12 divisors (see below), whose sum is σ = 5838482100. Its totient is φ = 5145480288.

The previous prime is 5481669821. The next prime is 5481669847. The reversal of 5481669841 is 1489661845.

It can be written as a sum of positive squares in 2 ways, for example, as 4212529216 + 1269140625 = 64904^2 + 35625^2 .

It is a de Polignac number, because none of the positive numbers 2^k-5481669841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5481669847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30306 + ... + 109003.

It is an arithmetic number, because the mean of its divisors is an integer number (486540175).

Almost surely, 2^5481669841 is an apocalyptic number.

It is an amenable number.

5481669841 is a deficient number, since it is larger than the sum of its proper divisors (356812259).

5481669841 is a wasteful number, since it uses less digits than its factorization.

5481669841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139456 (or 139437 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 52.

The square root of 5481669841 is about 74038.2998251581. The cubic root of 5481669841 is about 1763.2110201080.

The spelling of 5481669841 in words is "five billion, four hundred eighty-one million, six hundred sixty-nine thousand, eight hundred forty-one".