40865808378228 has 12 divisors (see below), whose sum is σ = 95353552882560. Its totient is φ = 13621936126072.

The previous prime is 40865808378223. The next prime is 40865808378251. The reversal of 40865808378228 is 82287380856804.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40865808378223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1702742015748 + ... + 1702742015771.

It is an arithmetic number, because the mean of its divisors is an integer number (7946129406880).

Almost surely, 2^{40865808378228} is an apocalyptic number.

It is an amenable number.

40865808378228 is an abundant number, since it is smaller than the sum of its proper divisors (54487744504332).

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

40865808378228 is a wasteful number, since it uses less digits than its factorization.

40865808378228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3405484031526 (or 3405484031524 counting only the distinct ones).

The product of its (nonzero) digits is 330301440, while the sum is 69.

The spelling of 40865808378228 in words is "forty trillion, eight hundred sixty-five billion, eight hundred eight million, three hundred seventy-eight thousand, two hundred twenty-eight".