68678575559 has 8 divisors (see below), whose sum is σ = 74944777728. Its totient is φ = 62416155960.

The previous prime is 68678575543. The next prime is 68678575607. The reversal of 68678575559 is 95557587686.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68678575559 - 2⁴ = 68678575543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68678575492 and 68678575501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68678775559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 907607 + ... + 980360.

It is an arithmetic number, because the mean of its divisors is an integer number (9368097216).

Almost surely, 2^68678575559 is an apocalyptic number.

68678575559 is a deficient number, since it is larger than the sum of its proper divisors (6266202169).

68678575559 is a wasteful number, since it uses less digits than its factorization.

68678575559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1891285.

The product of its digits is 635040000, while the sum is 71.

The spelling of 68678575559 in words is "sixty-eight billion, six hundred seventy-eight million, five hundred seventy-five thousand, five hundred fifty-nine".