40452447768 has 128 divisors (see below), whose sum is σ = 106263360000. Its totient is φ = 12815953920.

The previous prime is 40452447751. The next prime is 40452447773. The reversal of 40452447768 is 86774425404.

It is a happy number.

40452447768 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 40452447768.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13433383 + ... + 13436393.

It is an arithmetic number, because the mean of its divisors is an integer number (830182500).

Almost surely, 2^40452447768 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 40452447768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53131680000).

40452447768 is an abundant number, since it is smaller than the sum of its proper divisors (65810912232).

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

40452447768 is a wasteful number, since it uses less digits than its factorization.

40452447768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3345 (or 3341 counting only the distinct ones).

The product of its (nonzero) digits is 6021120, while the sum is 51.

The spelling of 40452447768 in words is "forty billion, four hundred fifty-two million, four hundred forty-seven thousand, seven hundred sixty-eight".