85382768971 has 4 divisors (see below), whose sum is σ = 85458397000. Its totient is φ = 85307140944.

The previous prime is 85382768963. The next prime is 85382768983. The reversal of 85382768971 is 17986728358.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17986728358 = 2 ⋅8993364179.

It is a cyclic number.

It is not a de Polignac number, because 85382768971 - 2³ = 85382768963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85382766971) 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 3 ways as a sum of consecutive naturals, for example, 37812321 + ... + 37814578.

It is an arithmetic number, because the mean of its divisors is an integer number (21364599250).

Almost surely, 2^85382768971 is an apocalyptic number.

85382768971 is a deficient number, since it is larger than the sum of its proper divisors (75628029).

85382768971 is a wasteful number, since it uses less digits than its factorization.

85382768971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75628028.

The product of its digits is 40642560, while the sum is 64.

The spelling of 85382768971 in words is "eighty-five billion, three hundred eighty-two million, seven hundred sixty-eight thousand, nine hundred seventy-one".