18622831682 has 32 divisors (see below), whose sum is σ = 35875429632. Its totient is φ = 7046956224.

The previous prime is 18622831657. The next prime is 18622831691. The reversal of 18622831682 is 28613822681.

It is a super-2 number, since 2×18622831682² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2220233 + ... + 2228604.

It is an arithmetic number, because the mean of its divisors is an integer number (1121107176).

Almost surely, 2^18622831682 is an apocalyptic number.

18622831682 is a deficient number, since it is larger than the sum of its proper divisors (17252597950).

18622831682 is a wasteful number, since it uses less digits than its factorization.

18622831682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4448882.

The product of its digits is 442368, while the sum is 47.

Subtracting 18622831682 from its reverse (28613822681), we obtain a palindrome (9990990999).

The spelling of 18622831682 in words is "eighteen billion, six hundred twenty-two million, eight hundred thirty-one thousand, six hundred eighty-two".