18104281371 has 18 divisors (see below), whose sum is σ = 28530068268. Its totient is φ = 10971480360.

The previous prime is 18104281303. The next prime is 18104281373. The reversal of 18104281371 is 17318240181.

18104281371 is a `hidden beast` number, since 1 + 8 + 1 + 0 + 4 + 281 + 371 = 666.

It is not a de Polignac number, because 18104281371 - 2¹⁷ = 18104150299 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (18104281373) 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 in 17 ways as a sum of consecutive naturals, for example, 1332016 + ... + 1345538.

Almost surely, 2^18104281371 is an apocalyptic number.

18104281371 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

18104281371 is a deficient number, since it is larger than the sum of its proper divisors (10425786897).

18104281371 is an frugal number, since it uses more digits than its factorization.

18104281371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27063 (or 13537 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 36.

The spelling of 18104281371 in words is "eighteen billion, one hundred four million, two hundred eighty-one thousand, three hundred seventy-one".