18802827311 has 4 divisors (see below), whose sum is σ = 18870707832. Its totient is φ = 18734946792.

The previous prime is 18802827289. The next prime is 18802827317. The reversal of 18802827311 is 11372820881.

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 18802827311 - 2¹⁴ = 18802810927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18802827317) 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, 33939845 + ... + 33940398.

It is an arithmetic number, because the mean of its divisors is an integer number (4717676958).

Almost surely, 2^18802827311 is an apocalyptic number.

18802827311 is a deficient number, since it is larger than the sum of its proper divisors (67880521).

18802827311 is an equidigital number, since it uses as much as digits as its factorization.

18802827311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67880520.

The product of its (nonzero) digits is 43008, while the sum is 41.

The spelling of 18802827311 in words is "eighteen billion, eight hundred two million, eight hundred twenty-seven thousand, three hundred eleven".