18271441279 has 16 divisors (see below), whose sum is σ = 22546685952. Its totient is φ = 14418751968.

The previous prime is 18271441273. The next prime is 18271441303. The reversal of 18271441279 is 97214417281.

It is a cyclic number.

It is not a de Polignac number, because 18271441279 - 2⁷ = 18271441151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18271441273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227269 + ... + 296974.

It is an arithmetic number, because the mean of its divisors is an integer number (1409167872).

Almost surely, 2^18271441279 is an apocalyptic number.

18271441279 is a deficient number, since it is larger than the sum of its proper divisors (4275244673).

18271441279 is a wasteful number, since it uses less digits than its factorization.

18271441279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524646.

The product of its digits is 225792, while the sum is 46.

The spelling of 18271441279 in words is "eighteen billion, two hundred seventy-one million, four hundred forty-one thousand, two hundred seventy-nine".