18570228682 has 4 divisors (see below), whose sum is σ = 27855343026. Its totient is φ = 9285114340.

The previous prime is 18570228637. The next prime is 18570228689. The reversal of 18570228682 is 28682207581.

18570228682 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16584545961 + 1985682721 = 128781^2 + 44561^2 .

It is not an unprimeable number, because it can be changed into a prime (18570228689) by changing a digit.

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 as a sum of consecutive naturals, namely, 4642557169 + ... + 4642557172.

Almost surely, 2^18570228682 is an apocalyptic number.

18570228682 is a deficient number, since it is larger than the sum of its proper divisors (9285114344).

18570228682 is an equidigital number, since it uses as much as digits as its factorization.

18570228682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9285114343.

The product of its (nonzero) digits is 860160, while the sum is 49.

The spelling of 18570228682 in words is "eighteen billion, five hundred seventy million, two hundred twenty-eight thousand, six hundred eighty-two".