18803474311 has 2 divisors, whose sum is σ = 18803474312. Its totient is φ = 18803474310.

The previous prime is 18803474299. The next prime is 18803474321. The reversal of 18803474311 is 11347430881.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18803474311 - 2¹⁷ = 18803343239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18803474321) 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 as a sum of consecutive naturals, namely, 9401737155 + 9401737156.

It is an arithmetic number, because the mean of its divisors is an integer number (9401737156).

Almost surely, 2^18803474311 is an apocalyptic number.

18803474311 is a deficient number, since it is larger than the sum of its proper divisors (1).

18803474311 is an equidigital number, since it uses as much as digits as its factorization.

18803474311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 40.

The spelling of 18803474311 in words is "eighteen billion, eight hundred three million, four hundred seventy-four thousand, three hundred eleven".