68724178316 has 12 divisors (see below), whose sum is σ = 120296681400. Its totient is φ = 34353697920.

The previous prime is 68724178301. The next prime is 68724178321. The reversal of 68724178316 is 61387142786.

It is a happy 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, 2079365 + ... + 2112156.

It is an arithmetic number, because the mean of its divisors is an integer number (10024723450).

Almost surely, 2^68724178316 is an apocalyptic number.

It is an amenable number.

68724178316 is a deficient number, since it is larger than the sum of its proper divisors (51572503084).

68724178316 is a wasteful number, since it uses less digits than its factorization.

68724178316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4195624 (or 4195622 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 53.

The spelling of 68724178316 in words is "sixty-eight billion, seven hundred twenty-four million, one hundred seventy-eight thousand, three hundred sixteen".