18141341540 has 144 divisors (see below), whose sum is σ = 46805496192. Its totient is φ = 5877172224.

The previous prime is 18141341521. The next prime is 18141341549. The reversal of 18141341540 is 4514314181.

It is a junction number, because it is equal to n+sod(n) for n = 18141341497 and 18141341506.

It is not an unprimeable number, because it can be changed into a prime (18141341549) 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, 1865972 + ... + 1875668.

It is an arithmetic number, because the mean of its divisors is an integer number (325038168).

Almost surely, 2^18141341540 is an apocalyptic number.

18141341540 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 18141341540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23402748096).

18141341540 is an abundant number, since it is smaller than the sum of its proper divisors (28664154652).

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

18141341540 is a wasteful number, since it uses less digits than its factorization.

18141341540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9826 (or 9817 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The spelling of 18141341540 in words is "eighteen billion, one hundred forty-one million, three hundred forty-one thousand, five hundred forty".