68027878 has 4 divisors (see below), whose sum is σ = 102041820. Its totient is φ = 34013938.

The previous prime is 68027837. The next prime is 68027893. The reversal of 68027878 is 87872086.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 17006968 + ... + 17006971.

It is an arithmetic number, because the mean of its divisors is an integer number (25510455).

Almost surely, 2^68027878 is an apocalyptic number.

68027878 is a deficient number, since it is larger than the sum of its proper divisors (34013942).

68027878 is a wasteful number, since it uses less digits than its factorization.

68027878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34013941.

The product of its (nonzero) digits is 301056, while the sum is 46.

The square root of 68027878 is about 8247.9014300609. The cubic root of 68027878 is about 408.2212811890.

The spelling of 68027878 in words is "sixty-eight million, twenty-seven thousand, eight hundred seventy-eight".