68208768 has 48 divisors (see below), whose sum is σ = 196281150. Its totient is φ = 22735872.

The previous prime is 68208761. The next prime is 68208851. The reversal of 68208768 is 86780286.

It can be written as a sum of positive squares in only one way, i.e., 56430144 + 11778624 = 7512^2 + 3432^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (68208761) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28453 + ... + 30756.

Almost surely, 2^68208768 is an apocalyptic number.

It is an amenable number.

68208768 is an abundant number, since it is smaller than the sum of its proper divisors (128072382).

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

68208768 is a wasteful number, since it uses less digits than its factorization.

68208768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59229 (or 59214 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 68208768 is about 8258.8599697537. The cubic root of 68208768 is about 408.5827888297.

The spelling of 68208768 in words is "sixty-eight million, two hundred eight thousand, seven hundred sixty-eight".