18483803718838 has 8 divisors (see below), whose sum is σ = 27726340876920. Its totient is φ = 9241690093200.

The previous prime is 18483803718773. The next prime is 18483803718869. The reversal of 18483803718838 is 83881730838481.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105773983 + ... + 105948586.

It is an arithmetic number, because the mean of its divisors is an integer number (3465792609615).

Almost surely, 2^{18483803718838} is an apocalyptic number.

18483803718838 is a deficient number, since it is larger than the sum of its proper divisors (9242537158082).

18483803718838 is a wasteful number, since it uses less digits than its factorization.

18483803718838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211766222.

The product of its (nonzero) digits is 198180864, while the sum is 70.

The spelling of 18483803718838 in words is "eighteen trillion, four hundred eighty-three billion, eight hundred three million, seven hundred eighteen thousand, eight hundred thirty-eight".