68879742 has 8 divisors (see below), whose sum is σ = 137759496. Its totient is φ = 22959912.

The previous prime is 68879729. The next prime is 68879747. The reversal of 68879742 is 24797886.

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

68879742 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68879747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5739973 + ... + 5739984.

It is an arithmetic number, because the mean of its divisors is an integer number (17219937).

Almost surely, 2^68879742 is an apocalyptic number.

68879742 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.

68879742 is a wasteful number, since it uses less digits than its factorization.

68879742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11479962.

The product of its digits is 1354752, while the sum is 51.

The square root of 68879742 is about 8299.3820251872. The cubic root of 68879742 is about 409.9181712563.

The spelling of 68879742 in words is "sixty-eight million, eight hundred seventy-nine thousand, seven hundred forty-two".