40004550412000 has 192 divisors, whose sum is σ = 99695132304768. Its totient is φ = 15773345280000.

The previous prime is 40004550411953. The next prime is 40004550412003. The reversal of 40004550412000 is 21405540004.

It is a happy number.

It is a super-3 number, since 3×40004550412000³ (a number of 42 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40004550412003) 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, 1912161540 + ... + 1912182460.

It is an arithmetic number, because the mean of its divisors is an integer number (519245480754).

Almost surely, 2^{40004550412000} is an apocalyptic number.

40004550412000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40004550412000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49847566152384).

40004550412000 is an abundant number, since it is smaller than the sum of its proper divisors (59690581892768).

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

40004550412000 is a wasteful number, since it uses less digits than its factorization.

40004550412000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27750 (or 27732 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

Adding to 40004550412000 its reverse (21405540004), we get a palindrome (40025955952004).

The spelling of 40004550412000 in words is "forty trillion, four billion, five hundred fifty million, four hundred twelve thousand".