68547712 has 16 divisors (see below), whose sum is σ = 136560150. Its totient is φ = 34273792.

The previous prime is 68547707. The next prime is 68547733. The reversal of 68547712 is 21774586.

It can be written as a sum of positive squares in only one way, i.e., 68293696 + 254016 = 8264^2 + 504^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267637 + ... + 267892.

Almost surely, 2^68547712 is an apocalyptic number.

It is an amenable number.

68547712 is a deficient number, since it is larger than the sum of its proper divisors (68012438).

68547712 is an equidigital number, since it uses as much as digits as its factorization.

68547712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535543 (or 535531 counting only the distinct ones).

The product of its digits is 94080, while the sum is 40.

The square root of 68547712 is about 8279.3545642157. The cubic root of 68547712 is about 409.2584494034.

The spelling of 68547712 in words is "sixty-eight million, five hundred forty-seven thousand, seven hundred twelve".