68216315 has 8 divisors (see below), whose sum is σ = 82362768. Its totient is φ = 54237600.

The previous prime is 68216311. The next prime is 68216329. The reversal of 68216315 is 51361286.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68216315 - 2² = 68216311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68216311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41036 + ... + 42665.

It is an arithmetic number, because the mean of its divisors is an integer number (10295346).

Almost surely, 2^68216315 is an apocalyptic number.

68216315 is a deficient number, since it is larger than the sum of its proper divisors (14146453).

68216315 is a wasteful number, since it uses less digits than its factorization.

68216315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83869.

The product of its digits is 8640, while the sum is 32.

The square root of 68216315 is about 8259.3168603705. The cubic root of 68216315 is about 408.5978575698.

The spelling of 68216315 in words is "sixty-eight million, two hundred sixteen thousand, three hundred fifteen".