18069214987602 has 72 divisors (see below), whose sum is σ = 40720005521676. Its totient is φ = 6013243420128.

The previous prime is 18069214987553. The next prime is 18069214987667. The reversal of 18069214987602 is 20678941296081.

18069214987602 is a `hidden beast` number, since 1 + 8 + 0 + 6 + 9 + 2 + 14 + 9 + 8 + 7 + 602 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 10440466031241 + 7628748956361 = 3231171^2 + 2762019^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18069214987602.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6920608 + ... + 9166964.

Almost surely, 2^{18069214987602} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18069214987602, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20360002760838).

18069214987602 is an abundant number, since it is smaller than the sum of its proper divisors (22650790534074).

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

18069214987602 is an frugal number, since it uses more digits than its factorization.

18069214987602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2246996 (or 2246975 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 63.

The spelling of 18069214987602 in words is "eighteen trillion, sixty-nine billion, two hundred fourteen million, nine hundred eighty-seven thousand, six hundred two".