617868689697 has 24 divisors (see below), whose sum is σ = 1079972165376. Its totient is φ = 332299126656.

The previous prime is 617868689689. The next prime is 617868689717. The reversal of 617868689697 is 796986868716.

It is not a de Polignac number, because 617868689697 - 2³ = 617868689689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (617868681697) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 288453033 + ... + 288455174.

It is an arithmetic number, because the mean of its divisors is an integer number (44998840224).

Almost surely, 2^617868689697 is an apocalyptic number.

It is an amenable number.

617868689697 is a deficient number, since it is larger than the sum of its proper divisors (462103475679).

617868689697 is a wasteful number, since it uses less digits than its factorization.

617868689697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576908237 (or 576908234 counting only the distinct ones).

The product of its digits is 2633637888, while the sum is 81.

The spelling of 617868689697 in words is "six hundred seventeen billion, eight hundred sixty-eight million, six hundred eighty-nine thousand, six hundred ninety-seven".