43841853312018 has 16 divisors (see below), whose sum is σ = 90707282714880. Its totient is φ = 14110021755536.

The previous prime is 43841853312017. The next prime is 43841853312031. The reversal of 43841853312018 is 81021335814834.

It is not an unprimeable number, because it can be changed into a prime (43841853312017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125982336930 + ... + 125982337277.

It is an arithmetic number, because the mean of its divisors is an integer number (5669205169680).

Almost surely, 2^{43841853312018} is an apocalyptic number.

43841853312018 is an abundant number, since it is smaller than the sum of its proper divisors (46865429402862).

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

43841853312018 is a wasteful number, since it uses less digits than its factorization.

43841853312018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251964674241.

The product of its (nonzero) digits is 2211840, while the sum is 51.

The spelling of 43841853312018 in words is "forty-three trillion, eight hundred forty-one billion, eight hundred fifty-three million, three hundred twelve thousand, eighteen".