18441703368 has 192 divisors, whose sum is σ = 55579979520. Its totient is φ = 5477155200.

The previous prime is 18441703361. The next prime is 18441703369. The reversal of 18441703368 is 86330714481.

18441703368 is a `hidden beast` number, since 184 + 41 + 70 + 3 + 368 = 666.

It is a super-2 number, since 2×18441703368² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18441703361) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12044763 + ... + 12046293.

It is an arithmetic number, because the mean of its divisors is an integer number (289479060).

Almost surely, 2^18441703368 is an apocalyptic number.

18441703368 is a gapful number since it is divisible by the number (18) 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 18441703368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27789989760).

18441703368 is an abundant number, since it is smaller than the sum of its proper divisors (37138276152).

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

18441703368 is a wasteful number, since it uses less digits than its factorization.

18441703368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1848 (or 1841 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 18441703368 in words is "eighteen billion, four hundred forty-one million, seven hundred three thousand, three hundred sixty-eight".