18989146682 has 8 divisors (see below), whose sum is σ = 31073149152. Its totient is φ = 8631430300.

The previous prime is 18989146663. The next prime is 18989146699. The reversal of 18989146682 is 28664198981.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 431571494 + ... + 431571537.

It is an arithmetic number, because the mean of its divisors is an integer number (3884143644).

Almost surely, 2^18989146682 is an apocalyptic number.

18989146682 is a deficient number, since it is larger than the sum of its proper divisors (12084002470).

18989146682 is a wasteful number, since it uses less digits than its factorization.

18989146682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863143044.

The product of its digits is 11943936, while the sum is 62.

The spelling of 18989146682 in words is "eighteen billion, nine hundred eighty-nine million, one hundred forty-six thousand, six hundred eighty-two".