785442973085 has 16 divisors (see below), whose sum is σ = 977741936640. Its totient is φ = 605268792960.

The previous prime is 785442973067. The next prime is 785442973087. The reversal of 785442973085 is 580379244587.

It is a de Polignac number, because none of the positive numbers 2^k-785442973085 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (785442973087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24233357 + ... + 24265746.

It is an arithmetic number, because the mean of its divisors is an integer number (61108871040).

Almost surely, 2^785442973085 is an apocalyptic number.

It is an amenable number.

785442973085 is a deficient number, since it is larger than the sum of its proper divisors (192298963555).

785442973085 is a wasteful number, since it uses less digits than its factorization.

785442973085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48499228.

The product of its (nonzero) digits is 67737600, while the sum is 62.

The spelling of 785442973085 in words is "seven hundred eighty-five billion, four hundred forty-two million, nine hundred seventy-three thousand, eighty-five".