40684330809312 has 48 divisors (see below), whose sum is σ = 106958426762880. Its totient is φ = 13540864760192.

The previous prime is 40684330809247. The next prime is 40684330809319. The reversal of 40684330809312 is 21390803348604.

It is a tau number, because it is divible by the number of its divisors (48).

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321480828 + ... + 321607355.

It is an arithmetic number, because the mean of its divisors is an integer number (2228300557560).

Almost surely, 2^{40684330809312} is an apocalyptic number.

It is an amenable number.

40684330809312 is an abundant number, since it is smaller than the sum of its proper divisors (66274095953568).

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

40684330809312 is a wasteful number, since it uses less digits than its factorization.

40684330809312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643088855 (or 643088847 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 51.

The spelling of 40684330809312 in words is "forty trillion, six hundred eighty-four billion, three hundred thirty million, eight hundred nine thousand, three hundred twelve".