20054118019 has 8 divisors (see below), whose sum is σ = 22341458160. Its totient is φ = 17873165856.

The previous prime is 20054118011. The next prime is 20054118031. The reversal of 20054118019 is 91081145002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20054118019 - 2³ = 20054118011 is a prime.

It is a super-2 number, since 2×20054118019² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20054118011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26596597 + ... + 26597350.

It is an arithmetic number, because the mean of its divisors is an integer number (2792682270).

Almost surely, 2^20054118019 is an apocalyptic number.

20054118019 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

20054118019 is a deficient number, since it is larger than the sum of its proper divisors (2287340141).

20054118019 is a wasteful number, since it uses less digits than its factorization.

20054118019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53193989.

The product of its (nonzero) digits is 2880, while the sum is 31.

The spelling of 20054118019 in words is "twenty billion, fifty-four million, one hundred eighteen thousand, nineteen".