18846185449 has 8 divisors (see below), whose sum is σ = 23195305280. Its totient is φ = 14911267536.

The previous prime is 18846185429. The next prime is 18846185471. The reversal of 18846185449 is 94458164881.

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 18846185449 - 2⁵ = 18846185417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18846185393 and 18846185402.

It is not an unprimeable number, because it can be changed into a prime (18846185429) 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, 103550379 + ... + 103550560.

It is an arithmetic number, because the mean of its divisors is an integer number (2899413160).

Almost surely, 2^18846185449 is an apocalyptic number.

It is an amenable number.

18846185449 is a deficient number, since it is larger than the sum of its proper divisors (4349119831).

18846185449 is a wasteful number, since it uses less digits than its factorization.

18846185449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207100959.

The product of its digits is 8847360, while the sum is 58.

The spelling of 18846185449 in words is "eighteen billion, eight hundred forty-six million, one hundred eighty-five thousand, four hundred forty-nine".