18844013202 has 80 divisors (see below), whose sum is σ = 44076625632. Its totient is φ = 5370556800.

The previous prime is 18844013113. The next prime is 18844013203. The reversal of 18844013202 is 20231044881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18844013203) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6726202 + ... + 6729002.

Almost surely, 2^18844013202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18844013202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22038312816).

18844013202 is an abundant number, since it is smaller than the sum of its proper divisors (25232612430).

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

18844013202 is an equidigital number, since it uses as much as digits as its factorization.

18844013202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3301 (or 3280 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The spelling of 18844013202 in words is "eighteen billion, eight hundred forty-four million, thirteen thousand, two hundred two".