40684330809318 has 128 divisors (see below), whose sum is σ = 96759924019200. Its totient is φ = 11158023324672.

The previous prime is 40684330809247. The next prime is 40684330809319. The reversal of 40684330809318 is 81390803348604.

40684330809318 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40684330809319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 178331530 + ... + 178559522.

It is an arithmetic number, because the mean of its divisors is an integer number (755936906400).

Almost surely, 2^{40684330809318} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40684330809318, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48379962009600).

40684330809318 is an abundant number, since it is smaller than the sum of its proper divisors (56075593209882).

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

40684330809318 is a wasteful number, since it uses less digits than its factorization.

40684330809318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228886.

The product of its (nonzero) digits is 11943936, while the sum is 57.

The spelling of 40684330809318 in words is "forty trillion, six hundred eighty-four billion, three hundred thirty million, eight hundred nine thousand, three hundred eighteen".