18605827946 has 8 divisors (see below), whose sum is σ = 28871112420. Its totient is φ = 8982123808.

The previous prime is 18605827927. The next prime is 18605827963. The reversal of 18605827946 is 64972850681.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 17607963025 + 997864921 = 132695^2 + 31589^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 18605827891 and 18605827900.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160395011 + ... + 160395126.

Almost surely, 2^18605827946 is an apocalyptic number.

18605827946 is a deficient number, since it is larger than the sum of its proper divisors (10265284474).

18605827946 is a wasteful number, since it uses less digits than its factorization.

18605827946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320790168.

The product of its (nonzero) digits is 5806080, while the sum is 56.

The spelling of 18605827946 in words is "eighteen billion, six hundred five million, eight hundred twenty-seven thousand, nine hundred forty-six".