444780266268 has 96 divisors (see below), whose sum is σ = 1121998493952. Its totient is φ = 136324108800.

The previous prime is 444780266251. The next prime is 444780266297. The reversal of 444780266268 is 862662087444.

It is a super-2 number, since 2×444780266268² (a number of 24 digits) contains 22 as substring.

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, 73991383 + ... + 73997393.

It is an arithmetic number, because the mean of its divisors is an integer number (11687484312).

Almost surely, 2^444780266268 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 444780266268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (560999246976).

444780266268 is an abundant number, since it is smaller than the sum of its proper divisors (677218227684).

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

444780266268 is a wasteful number, since it uses less digits than its factorization.

444780266268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7795 (or 7793 counting only the distinct ones).

The product of its (nonzero) digits is 24772608, while the sum is 57.

The spelling of 444780266268 in words is "four hundred forty-four billion, seven hundred eighty million, two hundred sixty-six thousand, two hundred sixty-eight".