18897679882 has 8 divisors (see below), whose sum is σ = 28446685056. Its totient is φ = 9415451532.

The previous prime is 18897679877. The next prime is 18897679903. The reversal of 18897679882 is 28897679881.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16693498 + ... + 16694629.

It is an arithmetic number, because the mean of its divisors is an integer number (3555835632).

Almost surely, 2^18897679882 is an apocalyptic number.

18897679882 is a deficient number, since it is larger than the sum of its proper divisors (9549005174).

18897679882 is a wasteful number, since it uses less digits than its factorization.

18897679882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33388412.

The product of its digits is 195084288, while the sum is 73.

Subtracting 18897679882 from its reverse (28897679881), we obtain a palindrome (9999999999).

The spelling of 18897679882 in words is "eighteen billion, eight hundred ninety-seven million, six hundred seventy-nine thousand, eight hundred eighty-two".