18808748211 has 8 divisors (see below), whose sum is σ = 27358179264. Its totient is φ = 11399241320.

The previous prime is 18808748183. The next prime is 18808748213. The reversal of 18808748211 is 11284780881.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18808748211 - 2¹¹ = 18808746163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18808748213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284981001 + ... + 284981066.

It is an arithmetic number, because the mean of its divisors is an integer number (3419772408).

Almost surely, 2^18808748211 is an apocalyptic number.

18808748211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

18808748211 is a deficient number, since it is larger than the sum of its proper divisors (8549431053).

18808748211 is a wasteful number, since it uses less digits than its factorization.

18808748211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569962081.

The product of its (nonzero) digits is 229376, while the sum is 48.

The spelling of 18808748211 in words is "eighteen billion, eight hundred eight million, seven hundred forty-eight thousand, two hundred eleven".