18846945475199 has 8 divisors (see below), whose sum is σ = 18904339692912. Its totient is φ = 18789573876480.

The previous prime is 18846945475133. The next prime is 18846945475207. The reversal of 18846945475199 is 99157454964881.

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 18846945475199 - 2¹² = 18846945471103 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 (18846945475399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3984992 + ... + 7319429.

It is an arithmetic number, because the mean of its divisors is an integer number (2363042461614).

Almost surely, 2^{18846945475199} is an apocalyptic number.

18846945475199 is a deficient number, since it is larger than the sum of its proper divisors (57394217713).

18846945475199 is a wasteful number, since it uses less digits than its factorization.

18846945475199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11309497.

The product of its digits is 3135283200, while the sum is 80.

The spelling of 18846945475199 in words is "eighteen trillion, eight hundred forty-six billion, nine hundred forty-five million, four hundred seventy-five thousand, one hundred ninety-nine".