68968837288 has 16 divisors (see below), whose sum is σ = 139263998580. Its totient is φ = 31831771008.

The previous prime is 68968837271. The next prime is 68968837291. The reversal of 68968837288 is 88273886986.

It can be written as a sum of positive squares in 2 ways, for example, as 60416656804 + 8552180484 = 245798^2 + 92478^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 68968837288.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 331580845 + ... + 331581052.

Almost surely, 2^68968837288 is an apocalyptic number.

It is an amenable number.

68968837288 is an abundant number, since it is smaller than the sum of its proper divisors (70295161292).

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

68968837288 is a wasteful number, since it uses less digits than its factorization.

68968837288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663161916 (or 663161912 counting only the distinct ones).

The product of its digits is 445906944, while the sum is 73.

The spelling of 68968837288 in words is "sixty-eight billion, nine hundred sixty-eight million, eight hundred thirty-seven thousand, two hundred eighty-eight".