68776912 has 10 divisors (see below), whose sum is σ = 133255298. Its totient is φ = 34388448.

The previous prime is 68776891. The next prime is 68776913. The reversal of 68776912 is 21967786.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 54819216 + 13957696 = 7404^2 + 3736^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68776913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2149263 + ... + 2149294.

Almost surely, 2^68776912 is an apocalyptic number.

It is an amenable number.

68776912 is a deficient number, since it is larger than the sum of its proper divisors (64478386).

68776912 is a wasteful number, since it uses less digits than its factorization.

68776912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4298565 (or 4298559 counting only the distinct ones).

The product of its digits is 254016, while the sum is 46.

The square root of 68776912 is about 8293.1846717651. The cubic root of 68776912 is about 409.7140818399.

The spelling of 68776912 in words is "sixty-eight million, seven hundred seventy-six thousand, nine hundred twelve".