78281068 has 12 divisors (see below), whose sum is σ = 137088280. Its totient is φ = 39112992.

The previous prime is 78281041. The next prime is 78281069. The reversal of 78281068 is 86018287.

It is a super-3 number, since 3×78281068³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 78281068.

It is not an unprimeable number, because it can be changed into a prime (78281069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 355 + ... + 12517.

Almost surely, 2^78281068 is an apocalyptic number.

It is an amenable number.

78281068 is a deficient number, since it is larger than the sum of its proper divisors (58807212).

78281068 is a wasteful number, since it uses less digits than its factorization.

78281068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13776 (or 13774 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 40.

The square root of 78281068 is about 8847.6588993925. The cubic root of 78281068 is about 427.7784613521.

The spelling of 78281068 in words is "seventy-eight million, two hundred eighty-one thousand, sixty-eight".