18913857882 has 8 divisors (see below), whose sum is σ = 37827715776. Its totient is φ = 6304619292.

The previous prime is 18913857877. The next prime is 18913857931. The reversal of 18913857882 is 28875831981.

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

18913857882 is an admirable number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1576154818 + ... + 1576154829.

It is an arithmetic number, because the mean of its divisors is an integer number (4728464472).

Almost surely, 2^18913857882 is an apocalyptic number.

18913857882 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18913857882 is a wasteful number, since it uses less digits than its factorization.

18913857882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3152309652.

The product of its digits is 7741440, while the sum is 60.

The spelling of 18913857882 in words is "eighteen billion, nine hundred thirteen million, eight hundred fifty-seven thousand, eight hundred eighty-two".