18470817211 has 16 divisors (see below), whose sum is σ = 23169846528. Its totient is φ = 14304535200.

The previous prime is 18470817179. The next prime is 18470817247. The reversal of 18470817211 is 11271807481.

It is a cyclic number.

It is not a de Polignac number, because 18470817211 - 2⁵ = 18470817179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18470817511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 723280 + ... + 748381.

It is an arithmetic number, because the mean of its divisors is an integer number (1448115408).

Almost surely, 2^18470817211 is an apocalyptic number.

18470817211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

18470817211 is a deficient number, since it is larger than the sum of its proper divisors (4699029317).

18470817211 is a wasteful number, since it uses less digits than its factorization.

18470817211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1471842.

The product of its (nonzero) digits is 25088, while the sum is 40.

The spelling of 18470817211 in words is "eighteen billion, four hundred seventy million, eight hundred seventeen thousand, two hundred eleven".