68278722 has 8 divisors (see below), whose sum is σ = 136557456. Its totient is φ = 22759572.

The previous prime is 68278699. The next prime is 68278747. The reversal of 68278722 is 22787286.

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

68278722 is an admirable 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 in 3 ways as a sum of consecutive naturals, for example, 5689888 + ... + 5689899.

It is an arithmetic number, because the mean of its divisors is an integer number (17069682).

Almost surely, 2^68278722 is an apocalyptic number.

68278722 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

68278722 is a wasteful number, since it uses less digits than its factorization.

68278722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11379792.

The product of its digits is 150528, while the sum is 42.

The square root of 68278722 is about 8263.0939725989. The cubic root of 68278722 is about 408.7224201201.

It can be divided in two parts, 6 and 8278722, that added together give a palindrome (8278728).

The spelling of 68278722 in words is "sixty-eight million, two hundred seventy-eight thousand, seven hundred twenty-two".