18857173342 has 16 divisors (see below), whose sum is σ = 32340412800. Its totient is φ = 8078188248.

The previous prime is 18857173327. The next prime is 18857173351. The reversal of 18857173342 is 24337175881.

It is a happy number.

18857173342 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254092 + ... + 319807.

It is an arithmetic number, because the mean of its divisors is an integer number (2021275800).

Almost surely, 2^18857173342 is an apocalyptic number.

18857173342 is a deficient number, since it is larger than the sum of its proper divisors (13483239458).

18857173342 is a wasteful number, since it uses less digits than its factorization.

18857173342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576255.

The product of its digits is 1128960, while the sum is 49.

The spelling of 18857173342 in words is "eighteen billion, eight hundred fifty-seven million, one hundred seventy-three thousand, three hundred forty-two".