40121672756020 has 12 divisors (see below), whose sum is σ = 84255512787684. Its totient is φ = 16048669102400.

The previous prime is 40121672756017. The next prime is 40121672756027. The reversal of 40121672756020 is 2065727612104.

40121672756020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 27010118659876 + 13111554096144 = 5197126^2 + 3620988^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40121672756027) 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 3 ways as a sum of consecutive naturals, for example, 1003041818881 + ... + 1003041818920.

It is an arithmetic number, because the mean of its divisors is an integer number (7021292732307).

Almost surely, 2^{40121672756020} is an apocalyptic number.

It is an amenable number.

40121672756020 is an abundant number, since it is smaller than the sum of its proper divisors (44133840031664).

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

40121672756020 is a wasteful number, since it uses less digits than its factorization.

40121672756020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2006083637810 (or 2006083637808 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 43.

The spelling of 40121672756020 in words is "forty trillion, one hundred twenty-one billion, six hundred seventy-two million, seven hundred fifty-six thousand, twenty".