6801603811 has 4 divisors (see below), whose sum is σ = 6803447272. Its totient is φ = 6799760352.

The previous prime is 6801603749. The next prime is 6801603821. The reversal of 6801603811 is 1183061086.

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

It is a cyclic number.

It is not a de Polignac number, because 6801603811 - 2²³ = 6793215203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6801603821) 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 3 ways as a sum of consecutive naturals, for example, 916185 + ... + 923578.

It is an arithmetic number, because the mean of its divisors is an integer number (1700861818).

Almost surely, 2^6801603811 is an apocalyptic number.

6801603811 is a deficient number, since it is larger than the sum of its proper divisors (1843461).

6801603811 is a wasteful number, since it uses less digits than its factorization.

6801603811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1843460.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 6801603811 is about 82471.8364716101. The cubic root of 6801603811 is about 1894.6854076850.

Adding to 6801603811 its reverse (1183061086), we get a palindrome (7984664897).

The spelling of 6801603811 in words is "six billion, eight hundred one million, six hundred three thousand, eight hundred eleven".