18830288620 has 144 divisors (see below), whose sum is σ = 46929907584. Its totient is φ = 6304320000.

The previous prime is 18830288611. The next prime is 18830288621. The reversal of 18830288620 is 2688203881.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18830288621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23626062 + ... + 23626858.

It is an arithmetic number, because the mean of its divisors is an integer number (325902136).

Almost surely, 2^18830288620 is an apocalyptic number.

18830288620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18830288620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23464953792).

18830288620 is an abundant number, since it is smaller than the sum of its proper divisors (28099618964).

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

18830288620 is a wasteful number, since it uses less digits than its factorization.

18830288620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1592 (or 1579 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 46.

The spelling of 18830288620 in words is "eighteen billion, eight hundred thirty million, two hundred eighty-eight thousand, six hundred twenty".