68719280 has 120 divisors (see below), whose sum is σ = 189722976. Its totient is φ = 22671360.

The previous prime is 68719271. The next prime is 68719291. The reversal of 68719280 is 8291786.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 941324 + ... + 941396.

Almost surely, 2^68719280 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 68719280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94861488).

68719280 is an abundant number, since it is smaller than the sum of its proper divisors (121003696).

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

68719280 is a wasteful number, since it uses less digits than its factorization.

68719280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175 (or 128 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 68719280 is about 8289.7092832017. The cubic root of 68719280 is about 409.5996091203.

The spelling of 68719280 in words is "sixty-eight million, seven hundred nineteen thousand, two hundred eighty".