68277206528 has 80 divisors (see below), whose sum is σ = 143233667280. Its totient is φ = 32468975616.

The previous prime is 68277206521. The next prime is 68277206549. The reversal of 68277206528 is 82560277286.

It is a self number, because there is not a number n which added to its sum of digits gives 68277206528.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68277206521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 960500 + ... + 1029132.

It is an arithmetic number, because the mean of its divisors is an integer number (1790420841).

Almost surely, 2^68277206528 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 68277206528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71616833640).

68277206528 is an abundant number, since it is smaller than the sum of its proper divisors (74956460752).

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

68277206528 is an equidigital number, since it uses as much as digits as its factorization.

68277206528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68747 (or 68731 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 53.

The spelling of 68277206528 in words is "sixty-eight billion, two hundred seventy-seven million, two hundred six thousand, five hundred twenty-eight".