85502783217 has 16 divisors (see below), whose sum is σ = 119500210368. Its totient is φ = 54318270720.

The previous prime is 85502783203. The next prime is 85502783239. The reversal of 85502783217 is 71238720558.

It is not a de Polignac number, because 85502783217 - 2⁸ = 85502782961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85502783417) 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, 8077788 + ... + 8088365.

It is an arithmetic number, because the mean of its divisors is an integer number (7468763148).

Almost surely, 2^85502783217 is an apocalyptic number.

It is an amenable number.

85502783217 is a deficient number, since it is larger than the sum of its proper divisors (33997427151).

85502783217 is a wasteful number, since it uses less digits than its factorization.

85502783217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16166240.

The product of its (nonzero) digits is 940800, while the sum is 48.

The spelling of 85502783217 in words is "eighty-five billion, five hundred two million, seven hundred eighty-three thousand, two hundred seventeen".