68538785 has 16 divisors (see below), whose sum is σ = 95323392. Its totient is φ = 46334400.

The previous prime is 68538773. The next prime is 68538793. The reversal of 68538785 is 58783586.

It is not a de Polignac number, because 68538785 - 2⁶ = 68538721 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 (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11306 + ... + 16275.

It is an arithmetic number, because the mean of its divisors is an integer number (5957712).

Almost surely, 2^68538785 is an apocalyptic number.

It is an amenable number.

68538785 is a deficient number, since it is larger than the sum of its proper divisors (26784607).

68538785 is a wasteful number, since it uses less digits than its factorization.

68538785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27664.

The product of its digits is 1612800, while the sum is 50.

The square root of 68538785 is about 8278.8154345897. The cubic root of 68538785 is about 409.2406826602.

The spelling of 68538785 in words is "sixty-eight million, five hundred thirty-eight thousand, seven hundred eighty-five".