68128433 has 8 divisors (see below), whose sum is σ = 73653120. Its totient is φ = 62797680.

The previous prime is 68128409. The next prime is 68128441. The reversal of 68128433 is 33482186.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 68128433 - 2¹² = 68124337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68128393 and 68128402.

It is not an unprimeable number, because it can be changed into a prime (68122433) 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, 47753 + ... + 49158.

It is an arithmetic number, because the mean of its divisors is an integer number (9206640).

Almost surely, 2^68128433 is an apocalyptic number.

It is an amenable number.

68128433 is a deficient number, since it is larger than the sum of its proper divisors (5524687).

68128433 is a wasteful number, since it uses less digits than its factorization.

68128433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96967.

The product of its digits is 27648, while the sum is 35.

The square root of 68128433 is about 8253.9949721332. The cubic root of 68128433 is about 408.4223187805.

The spelling of 68128433 in words is "sixty-eight million, one hundred twenty-eight thousand, four hundred thirty-three".