68199543 has 32 divisors (see below), whose sum is σ = 103550400. Its totient is φ = 44352000.

The previous prime is 68199511. The next prime is 68199581. The reversal of 68199543 is 34599186.

It is a happy number.

It is not a de Polignac number, because 68199543 - 2⁵ = 68199511 is a prime.

Its product of digits (233280) is a multiple of the sum of its prime factors (480).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68197543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 242563 + ... + 242843.

It is an arithmetic number, because the mean of its divisors is an integer number (3235950).

Almost surely, 2^68199543 is an apocalyptic number.

68199543 is a deficient number, since it is larger than the sum of its proper divisors (35350857).

68199543 is a wasteful number, since it uses less digits than its factorization.

68199543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480 (or 474 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 68199543 is about 8258.3014597434. The cubic root of 68199543 is about 408.5643681962.

The spelling of 68199543 in words is "sixty-eight million, one hundred ninety-nine thousand, five hundred forty-three".