85785258758 has 8 divisors (see below), whose sum is σ = 129344613528. Its totient is φ = 42670387584.

The previous prime is 85785258749. The next prime is 85785258821.

85785258758 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×85785258758² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 111120416 + ... + 111121187.

It is an arithmetic number, because the mean of its divisors is an integer number (16168076691).

Almost surely, 2^85785258758 is an apocalyptic number.

85785258758 is a deficient number, since it is larger than the sum of its proper divisors (43559354770).

85785258758 is a wasteful number, since it uses less digits than its factorization.

85785258758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222241798.

The product of its digits is 250880000, while the sum is 68.

The spelling of 85785258758 in words is "eighty-five billion, seven hundred eighty-five million, two hundred fifty-eight thousand, seven hundred fifty-eight".