18671268008811 has 16 divisors (see below), whose sum is σ = 27892213636608. Its totient is φ = 11010084328800.

The previous prime is 18671268008717. The next prime is 18671268008831. The reversal of 18671268008811 is 11880086217681.

It is not a de Polignac number, because 18671268008811 - 2³¹ = 18669120525163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18671268008831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7645890675 + ... + 7645893116.

It is an arithmetic number, because the mean of its divisors is an integer number (1743263352288).

Almost surely, 2^{18671268008811} is an apocalyptic number.

18671268008811 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

18671268008811 is a deficient number, since it is larger than the sum of its proper divisors (9220945627797).

18671268008811 is a wasteful number, since it uses less digits than its factorization.

18671268008811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15291783842.

The product of its (nonzero) digits is 2064384, while the sum is 57.

The spelling of 18671268008811 in words is "eighteen trillion, six hundred seventy-one billion, two hundred sixty-eight million, eight thousand, eight hundred eleven".