18858885882 has 32 divisors (see below), whose sum is σ = 38015308800. Its totient is φ = 6236768688.

The previous prime is 18858885853. The next prime is 18858885887. The reversal of 18858885882 is 28858885881.

It is not an unprimeable number, because it can be changed into a prime (18858885887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1343263 + ... + 1357229.

It is an arithmetic number, because the mean of its divisors is an integer number (1187978400).

Almost surely, 2^18858885882 is an apocalyptic number.

18858885882 is an abundant number, since it is smaller than the sum of its proper divisors (19156422918).

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

18858885882 is a wasteful number, since it uses less digits than its factorization.

18858885882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15730.

The product of its digits is 104857600, while the sum is 69.

Subtracting 18858885882 from its reverse (28858885881), we obtain a palindrome (9999999999).

The spelling of 18858885882 in words is "eighteen billion, eight hundred fifty-eight million, eight hundred eighty-five thousand, eight hundred eighty-two".