68121044 has 24 divisors (see below), whose sum is σ = 121836960. Its totient is φ = 33317856.

The previous prime is 68121041. The next prime is 68121089. The reversal of 68121044 is 44012186.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68121041) 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 7 ways as a sum of consecutive naturals, for example, 41267 + ... + 42885.

It is an arithmetic number, because the mean of its divisors is an integer number (5076540).

Almost surely, 2^68121044 is an apocalyptic number.

It is an amenable number.

68121044 is a deficient number, since it is larger than the sum of its proper divisors (53715916).

68121044 is a wasteful number, since it uses less digits than its factorization.

68121044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1847 (or 1845 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 68121044 is about 8253.5473585604. The cubic root of 68121044 is about 408.4075528377.

The spelling of 68121044 in words is "sixty-eight million, one hundred twenty-one thousand, forty-four".