68545534 has 16 divisors (see below), whose sum is σ = 105850368. Its totient is φ = 33266592.

The previous prime is 68545523. The next prime is 68545567. The reversal of 68545534 is 43554586.

It is a congruent number.

It is an unprimeable number.

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, 40387 + ... + 42049.

It is an arithmetic number, because the mean of its divisors is an integer number (6615648).

Almost surely, 2^68545534 is an apocalyptic number.

68545534 is a deficient number, since it is larger than the sum of its proper divisors (37304834).

68545534 is a wasteful number, since it uses less digits than its factorization.

68545534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2259.

The product of its digits is 288000, while the sum is 40.

The square root of 68545534 is about 8279.2230311787. The cubic root of 68545534 is about 409.2541148344.

The spelling of 68545534 in words is "sixty-eight million, five hundred forty-five thousand, five hundred thirty-four".