18878887882 has 32 divisors (see below), whose sum is σ = 30553634880. Its totient is φ = 8721820800.

The previous prime is 18878887871. The next prime is 18878887891. The reversal of 18878887882 is 28878887881.

It is a super-2 number, since 2×18878887882² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220438 + ... + 293854.

It is an arithmetic number, because the mean of its divisors is an integer number (954801090).

Almost surely, 2^18878887882 is an apocalyptic number.

18878887882 is a deficient number, since it is larger than the sum of its proper divisors (11674746998).

18878887882 is a wasteful number, since it uses less digits than its factorization.

18878887882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73606.

The product of its digits is 205520896, while the sum is 73.

Subtracting 18878887882 from its reverse (28878887881), we obtain a palindrome (9999999999).

The spelling of 18878887882 in words is "eighteen billion, eight hundred seventy-eight million, eight hundred eighty-seven thousand, eight hundred eighty-two".