68651472 has 20 divisors (see below), whose sum is σ = 177349760. Its totient is φ = 22883808.

The previous prime is 68651461. The next prime is 68651477. The reversal of 68651472 is 27415686.

It is a self number, because there is not a number n which added to its sum of digits gives 68651472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68651477) 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 3 ways as a sum of consecutive naturals, for example, 715072 + ... + 715167.

It is an arithmetic number, because the mean of its divisors is an integer number (8867488).

Almost surely, 2^68651472 is an apocalyptic number.

It is an amenable number.

68651472 is an abundant number, since it is smaller than the sum of its proper divisors (108698288).

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

68651472 is a wasteful number, since it uses less digits than its factorization.

68651472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1430250 (or 1430244 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 68651472 is about 8285.6183836814. The cubic root of 68651472 is about 409.4648421351.

The spelling of 68651472 in words is "sixty-eight million, six hundred fifty-one thousand, four hundred seventy-two".