617935138208 has 12 divisors (see below), whose sum is σ = 1216559803410. Its totient is φ = 308967569088.

The previous prime is 617935138199. The next prime is 617935138253. The reversal of 617935138208 is 802831539716.

It can be written as a sum of positive squares in only one way, i.e., 613947468304 + 3987669904 = 783548^2 + 63148^2 .

It is a super-2 number, since 2×617935138208² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 617935138208.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9655236503 + ... + 9655236566.

Almost surely, 2^617935138208 is an apocalyptic number.

It is an amenable number.

617935138208 is a deficient number, since it is larger than the sum of its proper divisors (598624665202).

617935138208 is a wasteful number, since it uses less digits than its factorization.

617935138208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19310473079 (or 19310473071 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 53.

The spelling of 617935138208 in words is "six hundred seventeen billion, nine hundred thirty-five million, one hundred thirty-eight thousand, two hundred eight".