944572894722 has 42 divisors (see below), whose sum is σ = 2124400693977. Its totient is φ = 314845261416.

The previous prime is 944572894711. The next prime is 944572894723. The reversal of 944572894722 is 227498275449.

It is a happy number.

944572894722 is a `hidden beast` number, since 9 + 4 + 457 + 28 + 94 + 72 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 944416619721 + 156275001 = 971811^2 + 12501^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=687231.

It is a self number, because there is not a number n which added to its sum of digits gives 944572894722.

It is not an unprimeable number, because it can be changed into a prime (944572894723) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 37097748 + ... + 37123200.

Almost surely, 2^944572894722 is an apocalyptic number.

944572894722 is an abundant number, since it is smaller than the sum of its proper divisors (1179827799255).

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

944572894722 is an frugal number, since it uses more digits than its factorization.

944572894722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50926 (or 25458 counting only the distinct ones).

The product of its digits is 81285120, while the sum is 63.

The spelling of 944572894722 in words is "nine hundred forty-four billion, five hundred seventy-two million, eight hundred ninety-four thousand, seven hundred twenty-two".