18581682048 has 32 divisors (see below), whose sum is σ = 49357593960. Its totient is φ = 6193893888.

The previous prime is 18581681999. The next prime is 18581682061. The reversal of 18581682048 is 84028618581.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24194515 + ... + 24195282.

Almost surely, 2^18581682048 is an apocalyptic number.

It is an amenable number.

18581682048 is an abundant number, since it is smaller than the sum of its proper divisors (30775911912).

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

18581682048 is an equidigital number, since it uses as much as digits as its factorization.

18581682048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48389814 (or 48389802 counting only the distinct ones).

The product of its (nonzero) digits is 983040, while the sum is 51.

The spelling of 18581682048 in words is "eighteen billion, five hundred eighty-one million, six hundred eighty-two thousand, forty-eight".