452001781068 has 24 divisors (see below), whose sum is σ = 1054730208000. Its totient is φ = 150658776720.

The previous prime is 452001781067. The next prime is 452001781087. The reversal of 452001781068 is 860187100254.

It is a super-2 number, since 2×452001781068² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (452001781067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 836568 + ... + 1266431.

It is an arithmetic number, because the mean of its divisors is an integer number (43947092000).

Almost surely, 2^452001781068 is an apocalyptic number.

It is an amenable number.

452001781068 is an abundant number, since it is smaller than the sum of its proper divisors (602728426932).

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

452001781068 is a wasteful number, since it uses less digits than its factorization.

452001781068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2120917 (or 2120915 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 42.

The spelling of 452001781068 in words is "four hundred fifty-two billion, one million, seven hundred eighty-one thousand, sixty-eight".