68394851 has 8 divisors (see below), whose sum is σ = 82279680. Its totient is φ = 55538568.

The previous prime is 68394817. The next prime is 68394881. The reversal of 68394851 is 15849386.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68394851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68394881) 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, 256991 + ... + 257256.

It is an arithmetic number, because the mean of its divisors is an integer number (10284960).

Almost surely, 2^68394851 is an apocalyptic number.

68394851 is a deficient number, since it is larger than the sum of its proper divisors (13884829).

68394851 is a wasteful number, since it uses less digits than its factorization.

68394851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514273.

The product of its digits is 207360, while the sum is 44.

The square root of 68394851 is about 8270.1179556280. The cubic root of 68394851 is about 408.9540083347.

The spelling of 68394851 in words is "sixty-eight million, three hundred ninety-four thousand, eight hundred fifty-one".