68668476 has 12 divisors (see below), whose sum is σ = 160226472. Its totient is φ = 22889488.

The previous prime is 68668429. The next prime is 68668513. The reversal of 68668476 is 67486686.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2861175 + ... + 2861198.

It is an arithmetic number, because the mean of its divisors is an integer number (13352206).

Almost surely, 2^68668476 is an apocalyptic number.

It is an amenable number.

68668476 is an abundant number, since it is smaller than the sum of its proper divisors (91557996).

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

68668476 is a wasteful number, since it uses less digits than its factorization.

68668476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5722380 (or 5722378 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 51.

The square root of 68668476 is about 8286.6444354757. The cubic root of 68668476 is about 409.4986455638.

The spelling of 68668476 in words is "sixty-eight million, six hundred sixty-eight thousand, four hundred seventy-six".