68737481268 has 96 divisors (see below), whose sum is σ = 177425149440. Its totient is φ = 20628639360.

The previous prime is 68737481209. The next prime is 68737481273. The reversal of 68737481268 is 86218473786.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 268003 + ... + 457493.

It is an arithmetic number, because the mean of its divisors is an integer number (1848178640).

Almost surely, 2^68737481268 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68737481268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88712574720).

68737481268 is an abundant number, since it is smaller than the sum of its proper divisors (108687668172).

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

68737481268 is a wasteful number, since it uses less digits than its factorization.

68737481268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189597 (or 189595 counting only the distinct ones).

The product of its digits is 21676032, while the sum is 60.

The spelling of 68737481268 in words is "sixty-eight billion, seven hundred thirty-seven million, four hundred eighty-one thousand, two hundred sixty-eight".