40218247318816 has 192 divisors, whose sum is σ = 100770980567040. Its totient is φ = 15402966958080.

The previous prime is 40218247318811. The next prime is 40218247318817. The reversal of 40218247318816 is 61881374281204.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (40218247318811) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3042450 + ... + 9470638.

It is an arithmetic number, because the mean of its divisors is an integer number (524848857120).

Almost surely, 2^{40218247318816} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40218247318816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50385490283520).

40218247318816 is an abundant number, since it is smaller than the sum of its proper divisors (60552733248224).

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

40218247318816 is a wasteful number, since it uses less digits than its factorization.

40218247318816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6428307 (or 6428299 counting only the distinct ones).

The product of its (nonzero) digits is 4128768, while the sum is 55.

The spelling of 40218247318816 in words is "forty trillion, two hundred eighteen billion, two hundred forty-seven million, three hundred eighteen thousand, eight hundred sixteen".