854728440722 has 18 divisors (see below), whose sum is σ = 1388329128693. Its totient is φ = 394482204792.

The previous prime is 854728440719. The next prime is 854728440821. The reversal of 854728440722 is 227044827458.

It can be written as a sum of positive squares in 2 ways, for example, as 730818104641 + 123910336081 = 854879^2 + 352009^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=653731.

It is a super-2 number, since 2×854728440722² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 16971863 + ... + 17022149.

Almost surely, 2^854728440722 is an apocalyptic number.

854728440722 is a deficient number, since it is larger than the sum of its proper divisors (533600687971).

854728440722 is an frugal number, since it uses more digits than its factorization.

854728440722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100602 (or 50302 counting only the distinct ones).

The product of its (nonzero) digits is 8028160, while the sum is 53.

The spelling of 854728440722 in words is "eight hundred fifty-four billion, seven hundred twenty-eight million, four hundred forty thousand, seven hundred twenty-two".