18370044984 has 64 divisors (see below), whose sum is σ = 47957495040. Its totient is φ = 5852760320.

The previous prime is 18370044971. The next prime is 18370044989. The reversal of 18370044984 is 48944007381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18370044989) 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, 776044 + ... + 799364.

It is an arithmetic number, because the mean of its divisors is an integer number (749335860).

Almost surely, 2^18370044984 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 18370044984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23978747520).

18370044984 is an abundant number, since it is smaller than the sum of its proper divisors (29587450056).

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

18370044984 is a wasteful number, since it uses less digits than its factorization.

18370044984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24780 (or 24776 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 18370044984 in words is "eighteen billion, three hundred seventy million, forty-four thousand, nine hundred eighty-four".