18839784141 has 16 divisors (see below), whose sum is σ = 28873233600. Its totient is φ = 12126757104.

The previous prime is 18839784113. The next prime is 18839784157. The reversal of 18839784141 is 14148793881.

It is not a de Polignac number, because 18839784141 - 2⁵ = 18839784109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18839788141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12029731 + ... + 12031296.

It is an arithmetic number, because the mean of its divisors is an integer number (1804577100).

Almost surely, 2^18839784141 is an apocalyptic number.

It is an amenable number.

18839784141 is a deficient number, since it is larger than the sum of its proper divisors (10033449459).

18839784141 is a wasteful number, since it uses less digits than its factorization.

18839784141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24061065 (or 24061059 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 54.

The spelling of 18839784141 in words is "eighteen billion, eight hundred thirty-nine million, seven hundred eighty-four thousand, one hundred forty-one".