68875660559 has 4 divisors (see below), whose sum is σ = 69129814560. Its totient is φ = 68621506560.

The previous prime is 68875660549. The next prime is 68875660621. The reversal of 68875660559 is 95506657886.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68875660559 - 2⁸ = 68875660303 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68875660495 and 68875660504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68875660549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127076594 + ... + 127077135.

It is an arithmetic number, because the mean of its divisors is an integer number (17282453640).

Almost surely, 2^68875660559 is an apocalyptic number.

68875660559 is a deficient number, since it is larger than the sum of its proper divisors (254154001).

68875660559 is a wasteful number, since it uses less digits than its factorization.

68875660559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254154000.

The product of its (nonzero) digits is 108864000, while the sum is 65.

The spelling of 68875660559 in words is "sixty-eight billion, eight hundred seventy-five million, six hundred sixty thousand, five hundred fifty-nine".