68123072 has 28 divisors (see below), whose sum is σ = 135483600. Its totient is φ = 33985536.

The previous prime is 68123071. The next prime is 68123087. The reversal of 68123072 is 27032186.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68123071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37448 + ... + 39224.

It is an arithmetic number, because the mean of its divisors is an integer number (4838700).

Almost surely, 2^68123072 is an apocalyptic number.

It is an amenable number.

68123072 is a deficient number, since it is larger than the sum of its proper divisors (67360528).

68123072 is a wasteful number, since it uses less digits than its factorization.

68123072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2388 (or 2378 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 68123072 is about 8253.6702139109. The cubic root of 68123072 is about 408.4116056348.

The spelling of 68123072 in words is "sixty-eight million, one hundred twenty-three thousand, seventy-two".