68545672 has 32 divisors (see below), whose sum is σ = 140374080. Its totient is φ = 31187520.

The previous prime is 68545667. The next prime is 68545679. The reversal of 68545672 is 27654586.

It is not an unprimeable number, because it can be changed into a prime (68545679) 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 7 ways as a sum of consecutive naturals, for example, 2743 + ... + 12025.

It is an arithmetic number, because the mean of its divisors is an integer number (4386690).

Almost surely, 2^68545672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68545672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70187040).

68545672 is an abundant number, since it is smaller than the sum of its proper divisors (71828408).

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

68545672 is a wasteful number, since it uses less digits than its factorization.

68545672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9373 (or 9369 counting only the distinct ones).

The product of its digits is 403200, while the sum is 43.

The square root of 68545672 is about 8279.2313652899. The cubic root of 68545672 is about 409.2543894793.

The spelling of 68545672 in words is "sixty-eight million, five hundred forty-five thousand, six hundred seventy-two".