68516712 has 64 divisors (see below), whose sum is σ = 207633600. Its totient is φ = 20761920.

The previous prime is 68516689. The next prime is 68516713. The reversal of 68516712 is 21761586.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (68516713) 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 15 ways as a sum of consecutive naturals, for example, 12043 + ... + 16794.

It is an arithmetic number, because the mean of its divisors is an integer number (3244275).

Almost surely, 2^68516712 is an apocalyptic number.

It is an amenable number.

68516712 is an abundant number, since it is smaller than the sum of its proper divisors (139116888).

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

68516712 is a wasteful number, since it uses less digits than its factorization.

68516712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28863 (or 28853 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 68516712 is about 8277.4822258945. The cubic root of 68516712 is about 409.1967457881.

The spelling of 68516712 in words is "sixty-eight million, five hundred sixteen thousand, seven hundred twelve".