85252780833 has 16 divisors (see below), whose sum is σ = 126105811200. Its totient is φ = 50792616080.

The previous prime is 85252780819. The next prime is 85252780867. The reversal of 85252780833 is 33808725258.

It is a cyclic number.

It is not a de Polignac number, because 85252780833 - 2⁴ = 85252780817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85252780933) 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, 21891423 + ... + 21895316.

It is an arithmetic number, because the mean of its divisors is an integer number (7881613200).

Almost surely, 2^85252780833 is an apocalyptic number.

It is an amenable number.

85252780833 is a deficient number, since it is larger than the sum of its proper divisors (40853030367).

85252780833 is a wasteful number, since it uses less digits than its factorization.

85252780833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43786812.

The product of its (nonzero) digits is 3225600, while the sum is 51.

The spelling of 85252780833 in words is "eighty-five billion, two hundred fifty-two million, seven hundred eighty thousand, eight hundred thirty-three".