68768651 has 8 divisors (see below), whose sum is σ = 78753024. Its totient is φ = 58824360.

The previous prime is 68768647. The next prime is 68768663. The reversal of 68768651 is 15686786.

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

It is not a de Polignac number, because 68768651 - 2² = 68768647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68768596 and 68768605.

It is not an unprimeable number, because it can be changed into a prime (68768611) 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, 6245 + ... + 13286.

It is an arithmetic number, because the mean of its divisors is an integer number (9844128).

Almost surely, 2^68768651 is an apocalyptic number.

68768651 is a deficient number, since it is larger than the sum of its proper divisors (9984373).

68768651 is a wasteful number, since it uses less digits than its factorization.

68768651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20041.

The product of its digits is 483840, while the sum is 47.

The square root of 68768651 is about 8292.6865972374. The cubic root of 68768651 is about 409.6976771897.

The spelling of 68768651 in words is "sixty-eight million, seven hundred sixty-eight thousand, six hundred fifty-one".