68278712 has 16 divisors (see below), whose sum is σ = 129826800. Its totient is φ = 33658240.

The previous prime is 68278699. The next prime is 68278747. The reversal of 68278712 is 21787286.

It is a self number, because there is not a number n which added to its sum of digits gives 68278712.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59537 + ... + 60672.

It is an arithmetic number, because the mean of its divisors is an integer number (8114175).

Almost surely, 2^68278712 is an apocalyptic number.

It is an amenable number.

68278712 is a deficient number, since it is larger than the sum of its proper divisors (61548088).

68278712 is a wasteful number, since it uses less digits than its factorization.

68278712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120286 (or 120282 counting only the distinct ones).

The product of its digits is 75264, while the sum is 41.

The square root of 68278712 is about 8263.0933674986. The cubic root of 68278712 is about 408.7224001664.

The spelling of 68278712 in words is "sixty-eight million, two hundred seventy-eight thousand, seven hundred twelve".