617868689696 has 12 divisors (see below), whose sum is σ = 1216428982902. Its totient is φ = 308934344832.

The previous prime is 617868689689. The next prime is 617868689717. The reversal of 617868689696 is 696986868716.

It can be written as a sum of positive squares in only one way, i.e., 567665806096 + 50202883600 = 753436^2 + 224060^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 617868689696.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9654198245 + ... + 9654198308.

Almost surely, 2^617868689696 is an apocalyptic number.

It is an amenable number.

617868689696 is a deficient number, since it is larger than the sum of its proper divisors (598560293206).

617868689696 is a wasteful number, since it uses less digits than its factorization.

617868689696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19308396563 (or 19308396555 counting only the distinct ones).

The product of its digits is 2257403904, while the sum is 80.

The spelling of 617868689696 in words is "six hundred seventeen billion, eight hundred sixty-eight million, six hundred eighty-nine thousand, six hundred ninety-six".