68765785 has 16 divisors (see below), whose sum is σ = 91369152. Its totient is φ = 49262400.

The previous prime is 68765783. The next prime is 68765789. The reversal of 68765785 is 58756786.

It is not a de Polignac number, because 68765785 - 2¹ = 68765783 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68765783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5646 + ... + 13015.

It is an arithmetic number, because the mean of its divisors is an integer number (5710572).

Almost surely, 2^68765785 is an apocalyptic number.

It is an amenable number.

68765785 is a deficient number, since it is larger than the sum of its proper divisors (22603367).

68765785 is a wasteful number, since it uses less digits than its factorization.

68765785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18744.

The product of its digits is 2822400, while the sum is 52.

The square root of 68765785 is about 8292.5137925722. The cubic root of 68765785 is about 409.6919855951.

The spelling of 68765785 in words is "sixty-eight million, seven hundred sixty-five thousand, seven hundred eighty-five".