18835380413 has 8 divisors (see below), whose sum is σ = 19022697408. Its totient is φ = 18648149184.

The previous prime is 18835380383. The next prime is 18835380419. The reversal of 18835380413 is 31408353881.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 18835380413 - 2⁶ = 18835380349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18835380419) 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, 477170 + ... + 515132.

It is an arithmetic number, because the mean of its divisors is an integer number (2377837176).

Almost surely, 2^18835380413 is an apocalyptic number.

It is an amenable number.

18835380413 is a deficient number, since it is larger than the sum of its proper divisors (187316995).

18835380413 is a wasteful number, since it uses less digits than its factorization.

18835380413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42883.

The product of its (nonzero) digits is 276480, while the sum is 44.

The spelling of 18835380413 in words is "eighteen billion, eight hundred thirty-five million, three hundred eighty thousand, four hundred thirteen".