5541821764 has 18 divisors (see below), whose sum is σ = 10021131582. Its totient is φ = 2681524800.

The previous prime is 5541821741. The next prime is 5541821777. The reversal of 5541821764 is 4671281455.

It can be written as a sum of positive squares in only one way, i.e., 5535360000 + 6461764 = 74400^2 + 2542^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 5541821764.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 716997 + ... + 724684.

Almost surely, 2^5541821764 is an apocalyptic number.

It is an amenable number.

5541821764 is a deficient number, since it is larger than the sum of its proper divisors (4479309818).

5541821764 is a wasteful number, since it uses less digits than its factorization.

5541821764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441747 (or 1441714 counting only the distinct ones).

The product of its digits is 268800, while the sum is 43.

The square root of 5541821764 is about 74443.4131673179. The cubic root of 5541821764 is about 1769.6369779086.

The spelling of 5541821764 in words is "five billion, five hundred forty-one million, eight hundred twenty-one thousand, seven hundred sixty-four".