617321206709 has 8 divisors (see below), whose sum is σ = 618712979040. Its totient is φ = 615930137200.

The previous prime is 617321206699. The next prime is 617321206739. The reversal of 617321206709 is 907602123716.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-617321206709 is a prime.

It is a super-2 number, since 2×617321206709² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 617321206709.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (617321206739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1603214 + ... + 1950624.

It is an arithmetic number, because the mean of its divisors is an integer number (77339122380).

Almost surely, 2^617321206709 is an apocalyptic number.

It is an amenable number.

617321206709 is a deficient number, since it is larger than the sum of its proper divisors (1391772331).

617321206709 is a wasteful number, since it uses less digits than its factorization.

617321206709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351411.

The product of its (nonzero) digits is 190512, while the sum is 44.

The spelling of 617321206709 in words is "six hundred seventeen billion, three hundred twenty-one million, two hundred six thousand, seven hundred nine".