68797778 has 8 divisors (see below), whose sum is σ = 117939072. Its totient is φ = 29484756.

The previous prime is 68797777. The next prime is 68797789. The reversal of 68797778 is 87779786.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (68797777) 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 3 ways as a sum of consecutive naturals, for example, 2457050 + ... + 2457077.

It is an arithmetic number, because the mean of its divisors is an integer number (14742384).

Almost surely, 2^68797778 is an apocalyptic number.

68797778 is a deficient number, since it is larger than the sum of its proper divisors (49141294).

68797778 is a wasteful number, since it uses less digits than its factorization.

68797778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4914136.

The product of its digits is 8297856, while the sum is 59.

The square root of 68797778 is about 8294.4425973057. The cubic root of 68797778 is about 409.7555115841.

The spelling of 68797778 in words is "sixty-eight million, seven hundred ninety-seven thousand, seven hundred seventy-eight".