68975606560 has 72 divisors (see below), whose sum is σ = 189559768860. Its totient is φ = 23648776704.

The previous prime is 68975606521. The next prime is 68975606569. The reversal of 68975606560 is 6560657986.

It can be written as a sum of positive squares in 2 ways, for example, as 65911319824 + 3064286736 = 256732^2 + 55356^2 .

It is a junction number, because it is equal to n+sod(n) for n = 68975606495 and 68975606504.

It is not an unprimeable number, because it can be changed into a prime (68975606569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4391115 + ... + 4406794.

Almost surely, 2^68975606560 is an apocalyptic number.

It is an amenable number.

68975606560 is an abundant number, since it is smaller than the sum of its proper divisors (120584162300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68975606560 is a wasteful number, since it uses less digits than its factorization.

68975606560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8797938 (or 8797923 counting only the distinct ones).

The product of its (nonzero) digits is 16329600, while the sum is 58.

The spelling of 68975606560 in words is "sixty-eight billion, nine hundred seventy-five million, six hundred six thousand, five hundred sixty".