68158785 has 16 divisors (see below), whose sum is σ = 109163520. Its totient is φ = 36314880.

The previous prime is 68158759. The next prime is 68158807. The reversal of 68158785 is 58785186.

It is not a de Polignac number, because 68158785 - 2⁶ = 68158721 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20521 + ... + 23609.

It is an arithmetic number, because the mean of its divisors is an integer number (6822720).

Almost surely, 2^68158785 is an apocalyptic number.

It is an amenable number.

68158785 is a deficient number, since it is larger than the sum of its proper divisors (41004735).

68158785 is a wasteful number, since it uses less digits than its factorization.

68158785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4568.

The product of its digits is 537600, while the sum is 48.

The square root of 68158785 is about 8255.8333922143. The cubic root of 68158785 is about 408.4829620548.

The spelling of 68158785 in words is "sixty-eight million, one hundred fifty-eight thousand, seven hundred eighty-five".