68078115 has 48 divisors (see below), whose sum is σ = 142803648. Its totient is φ = 29288448.

The previous prime is 68078111. The next prime is 68078117. The reversal of 68078115 is 51187086.

It is not a de Polignac number, because 68078115 - 2² = 68078111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68078115.

It is not an unprimeable number, because it can be changed into a prime (68078111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1002 + ... + 11711.

It is an arithmetic number, because the mean of its divisors is an integer number (2975076).

Almost surely, 2^68078115 is an apocalyptic number.

68078115 is an abundant number, since it is smaller than the sum of its proper divisors (74725533).

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

68078115 is a wasteful number, since it uses less digits than its factorization.

68078115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12748 (or 12745 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 36.

The square root of 68078115 is about 8250.9463093636. The cubic root of 68078115 is about 408.3217437592.

The spelling of 68078115 in words is "sixty-eight million, seventy-eight thousand, one hundred fifteen".