68880040272 has 30 divisors (see below), whose sum is σ = 192768446442. Its totient is φ = 22960013376.

The previous prime is 68880040267. The next prime is 68880040283. The reversal of 68880040272 is 27204008886.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 59095665216 + 9784375056 = 243096^2 + 98916^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 239166663 + ... + 239166950.

Almost surely, 2^68880040272 is an apocalyptic number.

It is an amenable number.

68880040272 is an abundant number, since it is smaller than the sum of its proper divisors (123888406170).

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

68880040272 is a wasteful number, since it uses less digits than its factorization.

68880040272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478333627 (or 478333618 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 45.

The spelling of 68880040272 in words is "sixty-eight billion, eight hundred eighty million, forty thousand, two hundred seventy-two".