68418535 has 8 divisors (see below), whose sum is σ = 82156320. Its totient is φ = 54698784.

The previous prime is 68418533. The next prime is 68418551. The reversal of 68418535 is 53581486.

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 68418535 - 2¹ = 68418533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68418533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6126 + ... + 13204.

It is an arithmetic number, because the mean of its divisors is an integer number (10269540).

Almost surely, 2^68418535 is an apocalyptic number.

68418535 is a deficient number, since it is larger than the sum of its proper divisors (13737785).

68418535 is a wasteful number, since it uses less digits than its factorization.

68418535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9017.

The product of its digits is 115200, while the sum is 40.

The square root of 68418535 is about 8271.5497338770. The cubic root of 68418535 is about 409.0012075454.

It can be divided in two parts, 6841 and 8535, that added together give a square (15376 = 124²).

The spelling of 68418535 in words is "sixty-eight million, four hundred eighteen thousand, five hundred thirty-five".