18867214688 has 96 divisors (see below), whose sum is σ = 43599306240. Its totient is φ = 7868298240.

The previous prime is 18867214687. The next prime is 18867214697. The reversal of 18867214688 is 88641276881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18867214687) 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, 3845645 + ... + 3850547.

It is an arithmetic number, because the mean of its divisors is an integer number (454159440).

Almost surely, 2^18867214688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18867214688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21799653120).

18867214688 is an abundant number, since it is smaller than the sum of its proper divisors (24732091552).

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

18867214688 is a wasteful number, since it uses less digits than its factorization.

18867214688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5380 (or 5372 counting only the distinct ones).

The product of its digits is 8257536, while the sum is 59.

The spelling of 18867214688 in words is "eighteen billion, eight hundred sixty-seven million, two hundred fourteen thousand, six hundred eighty-eight".