68051867 has 16 divisors (see below), whose sum is σ = 78708672. Its totient is φ = 58275840.

The previous prime is 68051857. The next prime is 68051899. The reversal of 68051867 is 76815086.

It is a cyclic number.

It is not a de Polignac number, because 68051867 - 2¹⁸ = 67789723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68051827) 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 15 ways as a sum of consecutive naturals, for example, 13523 + ... + 17859.

It is an arithmetic number, because the mean of its divisors is an integer number (4919292).

Almost surely, 2^68051867 is an apocalyptic number.

68051867 is a deficient number, since it is larger than the sum of its proper divisors (10656805).

68051867 is a wasteful number, since it uses less digits than its factorization.

68051867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4438.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 68051867 is about 8249.3555505870. The cubic root of 68051867 is about 408.2692598988.

The spelling of 68051867 in words is "sixty-eight million, fifty-one thousand, eight hundred sixty-seven".