85817496971 has 8 divisors (see below), whose sum is σ = 86795517600. Its totient is φ = 84839782720.

The previous prime is 85817496953. The next prime is 85817496991. The reversal of 85817496971 is 17969471858.

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

It is a cyclic number.

It is not a de Polignac number, because 85817496971 - 2⁶ = 85817496907 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85817496898 and 85817496907.

It is not an unprimeable number, because it can be changed into a prime (85817496931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 512450 + ... + 658968.

It is an arithmetic number, because the mean of its divisors is an integer number (10849439700).

Almost surely, 2^85817496971 is an apocalyptic number.

85817496971 is a deficient number, since it is larger than the sum of its proper divisors (978020629).

85817496971 is a wasteful number, since it uses less digits than its factorization.

85817496971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153189.

The product of its digits is 30481920, while the sum is 65.

The spelling of 85817496971 in words is "eighty-five billion, eight hundred seventeen million, four hundred ninety-six thousand, nine hundred seventy-one".