617451616322 has 18 divisors (see below), whose sum is σ = 940320676953. Its totient is φ = 304081288632.

The previous prime is 617451616289. The next prime is 617451616333. The reversal of 617451616322 is 223616154716.

It can be written as a sum of positive squares in 2 ways, for example, as 563804255161 + 53647361161 = 750869^2 + 231619^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=555631.

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, 74450408 + ... + 74458700.

Almost surely, 2^617451616322 is an apocalyptic number.

617451616322 is a deficient number, since it is larger than the sum of its proper divisors (322869060631).

617451616322 is an frugal number, since it uses more digits than its factorization.

617451616322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16722 (or 8362 counting only the distinct ones).

The product of its digits is 362880, while the sum is 44.

The spelling of 617451616322 in words is "six hundred seventeen billion, four hundred fifty-one million, six hundred sixteen thousand, three hundred twenty-two".