85885910782 has 32 divisors (see below), whose sum is σ = 155126080512. Its totient is φ = 34866051264.

The previous prime is 85885910779. The next prime is 85885910801. The reversal of 85885910782 is 28701958858.

It is a Smith number, since the sum of its digits (61) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 85885910782.

It is a congruent number.

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, 1261623 + ... + 1327954.

It is an arithmetic number, because the mean of its divisors is an integer number (4847690016).

Almost surely, 2^85885910782 is an apocalyptic number.

85885910782 is a deficient number, since it is larger than the sum of its proper divisors (69240169730).

85885910782 is a wasteful number, since it uses less digits than its factorization.

85885910782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2589712.

The product of its (nonzero) digits is 12902400, while the sum is 61.

The spelling of 85885910782 in words is "eighty-five billion, eight hundred eighty-five million, nine hundred ten thousand, seven hundred eighty-two".