68115653 has 8 divisors (see below), whose sum is σ = 69741216. Its totient is φ = 66502800.

The previous prime is 68115623. The next prime is 68115659. The reversal of 68115653 is 35651186.

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-68115653 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68115659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8138 + ... + 14228.

It is an arithmetic number, because the mean of its divisors is an integer number (8717652).

Almost surely, 2^68115653 is an apocalyptic number.

It is an amenable number.

68115653 is a deficient number, since it is larger than the sum of its proper divisors (1625563).

68115653 is a wasteful number, since it uses less digits than its factorization.

68115653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6355.

The product of its digits is 21600, while the sum is 35.

The square root of 68115653 is about 8253.2207652528. The cubic root of 68115653 is about 408.3967789610.

The spelling of 68115653 in words is "sixty-eight million, one hundred fifteen thousand, six hundred fifty-three".