1688107614365 has 16 divisors (see below), whose sum is σ = 2049416996400. Its totient is φ = 1334707917312.

The previous prime is 1688107614331. The next prime is 1688107614373. The reversal of 1688107614365 is 5634167018861.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 104320602169 + 1583787012196 = 322987^2 + 1258486^2 .

It is a cyclic number.

It is not a de Polignac number, because 1688107614365 - 2¹² = 1688107610269 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1688107614365.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127691 + ... + 1841879.

It is an arithmetic number, because the mean of its divisors is an integer number (128088562275).

Almost surely, 2^{1688107614365} is an apocalyptic number.

It is an amenable number.

1688107614365 is a deficient number, since it is larger than the sum of its proper divisors (361309382035).

1688107614365 is a wasteful number, since it uses less digits than its factorization.

1688107614365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1716496.

The product of its (nonzero) digits is 5806080, while the sum is 56.

The spelling of 1688107614365 in words is "one trillion, six hundred eighty-eight billion, one hundred seven million, six hundred fourteen thousand, three hundred sixty-five".