68145472 has 28 divisors (see below), whose sum is σ = 137525760. Its totient is φ = 33493376.

The previous prime is 68145443. The next prime is 68145487. The reversal of 68145472 is 27454186.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5248 + ... + 12799.

Almost surely, 2^68145472 is an apocalyptic number.

It is an amenable number.

68145472 is an abundant number, since it is smaller than the sum of its proper divisors (69380288).

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

68145472 is a wasteful number, since it uses less digits than its factorization.

68145472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18118 (or 18108 counting only the distinct ones).

The product of its digits is 53760, while the sum is 37.

The square root of 68145472 is about 8255.0270744559. The cubic root of 68145472 is about 408.4563649073.

The spelling of 68145472 in words is "sixty-eight million, one hundred forty-five thousand, four hundred seventy-two".