68335253280 has 288 divisors, whose sum is σ = 270161184384. Its totient is φ = 15405355008.

The previous prime is 68335253257. The next prime is 68335253369. The reversal of 68335253280 is 8235253386.

68335253280 is a `hidden beast` number, since 6 + 8 + 3 + 35 + 2 + 532 + 80 = 666.

68335253280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 689407 + ... + 782273.

It is an arithmetic number, because the mean of its divisors is an integer number (938059668).

Almost surely, 2^68335253280 is an apocalyptic number.

68335253280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68335253280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135080592192).

68335253280 is an abundant number, since it is smaller than the sum of its proper divisors (201825931104).

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

68335253280 is a wasteful number, since it uses less digits than its factorization.

68335253280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92968 (or 92957 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 68335253280 in words is "sixty-eight billion, three hundred thirty-five million, two hundred fifty-three thousand, two hundred eighty".