18606047448 has 16 divisors (see below), whose sum is σ = 46515118680. Its totient is φ = 6202015808.

The previous prime is 18606047441. The next prime is 18606047479. The reversal of 18606047448 is 84474060681.

It is a junction number, because it is equal to n+sod(n) for n = 18606047397 and 18606047406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18606047441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387625965 + ... + 387626012.

Almost surely, 2^18606047448 is an apocalyptic number.

It is an amenable number.

18606047448 is an abundant number, since it is smaller than the sum of its proper divisors (27909071232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18606047448 is a wasteful number, since it uses less digits than its factorization.

18606047448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775251986 (or 775251982 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 48.

The spelling of 18606047448 in words is "eighteen billion, six hundred six million, forty-seven thousand, four hundred forty-eight".