605728419122 has 18 divisors (see below), whose sum is σ = 915799391037. Its totient is φ = 300480726000.

The previous prime is 605728419119. The next prime is 605728419133. The reversal of 605728419122 is 221914827506.

It can be written as a sum of positive squares in 2 ways, for example, as 443038003321 + 162690415801 = 665611^2 + 403349^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=550331.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 144184622 + ... + 144188822.

Almost surely, 2^605728419122 is an apocalyptic number.

605728419122 is a deficient number, since it is larger than the sum of its proper divisors (310070971915).

605728419122 is an frugal number, since it uses more digits than its factorization.

605728419122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8666 (or 4334 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 47.

The spelling of 605728419122 in words is "six hundred five billion, seven hundred twenty-eight million, four hundred nineteen thousand, one hundred twenty-two".