68842105 has 16 divisors (see below), whose sum is σ = 87070464. Its totient is φ = 52148800.

The previous prime is 68842087. The next prime is 68842117. The reversal of 68842105 is 50124886.

It is not a de Polignac number, because 68842105 - 2¹⁵ = 68809337 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 8652 + ... + 14578.

It is an arithmetic number, because the mean of its divisors is an integer number (5441904).

Almost surely, 2^68842105 is an apocalyptic number.

It is an amenable number.

68842105 is a deficient number, since it is larger than the sum of its proper divisors (18228359).

68842105 is a wasteful number, since it uses less digits than its factorization.

68842105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6056.

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 68842105 is about 8297.1142573789. The cubic root of 68842105 is about 409.8434956905.

The spelling of 68842105 in words is "sixty-eight million, eight hundred forty-two thousand, one hundred five".