18829919911 has 8 divisors (see below), whose sum is σ = 20545689744. Its totient is φ = 17114809920.

The previous prime is 18829919897. The next prime is 18829919921. The reversal of 18829919911 is 11991992881.

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 18829919911 - 2¹³ = 18829911719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18829919921) 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 7 ways as a sum of consecutive naturals, for example, 104316 + ... + 220321.

It is an arithmetic number, because the mean of its divisors is an integer number (2568211218).

Almost surely, 2^18829919911 is an apocalyptic number.

18829919911 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

18829919911 is a deficient number, since it is larger than the sum of its proper divisors (1715769833).

18829919911 is a wasteful number, since it uses less digits than its factorization.

18829919911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329921.

The product of its digits is 839808, while the sum is 58.

The spelling of 18829919911 in words is "eighteen billion, eight hundred twenty-nine million, nine hundred nineteen thousand, nine hundred eleven".