5811803801 has 4 divisors (see below), whose sum is σ = 5813530212. Its totient is φ = 5810077392.

The previous prime is 5811803797. The next prime is 5811803819. The reversal of 5811803801 is 1083081185.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4858229401 + 953574400 = 69701^2 + 30880^2 .

It is a cyclic number.

It is not a de Polignac number, because 5811803801 - 2² = 5811803797 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5811803861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 858146 + ... + 864891.

It is an arithmetic number, because the mean of its divisors is an integer number (1453382553).

Almost surely, 2^5811803801 is an apocalyptic number.

It is an amenable number.

5811803801 is a deficient number, since it is larger than the sum of its proper divisors (1726411).

5811803801 is a wasteful number, since it uses less digits than its factorization.

5811803801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1726410.

The product of its (nonzero) digits is 7680, while the sum is 35.

The square root of 5811803801 is about 76235.1874202458. The cubic root of 5811803801 is about 1797.9197986541.

Adding to 5811803801 its reverse (1083081185), we get a palindrome (6894884986).

The spelling of 5811803801 in words is "five billion, eight hundred eleven million, eight hundred three thousand, eight hundred one".