18228712411 has 96 divisors (see below), whose sum is σ = 24666754560. Its totient is φ = 13324953600.

The previous prime is 18228712367. The next prime is 18228712471. The reversal of 18228712411 is 11421782281.

It is not a de Polignac number, because 18228712411 - 2²⁹ = 17691841499 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (18228712471) 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 95 ways as a sum of consecutive naturals, for example, 44568775 + ... + 44569183.

It is an arithmetic number, because the mean of its divisors is an integer number (256945360).

Almost surely, 2^18228712411 is an apocalyptic number.

18228712411 is a deficient number, since it is larger than the sum of its proper divisors (6438042149).

18228712411 is a wasteful number, since it uses less digits than its factorization.

18228712411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565 (or 558 counting only the distinct ones).

The product of its digits is 14336, while the sum is 37.

The spelling of 18228712411 in words is "eighteen billion, two hundred twenty-eight million, seven hundred twelve thousand, four hundred eleven".