18841138413 has 8 divisors (see below), whose sum is σ = 26213757888. Its totient is φ = 12014638944.

The previous prime is 18841138399. The next prime is 18841138423. The reversal of 18841138413 is 31483114881.

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

It is not a de Polignac number, because 18841138413 - 2⁸ = 18841138157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18841138423) 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, 136529920 + ... + 136530057.

It is an arithmetic number, because the mean of its divisors is an integer number (3276719736).

Almost surely, 2^18841138413 is an apocalyptic number.

It is an amenable number.

18841138413 is a deficient number, since it is larger than the sum of its proper divisors (7372619475).

18841138413 is a wasteful number, since it uses less digits than its factorization.

18841138413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273060003.

The product of its digits is 73728, while the sum is 42.

The spelling of 18841138413 in words is "eighteen billion, eight hundred forty-one million, one hundred thirty-eight thousand, four hundred thirteen".