85831579163 has 4 divisors (see below), whose sum is σ = 93634450008. Its totient is φ = 78028708320.

The previous prime is 85831579079. The next prime is 85831579181. The reversal of 85831579163 is 36197513858.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85831579163 - 2¹⁶ = 85831513627 is a prime.

It is a super-2 number, since 2×85831579163² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 85831579099 and 85831579108.

It is not an unprimeable number, because it can be changed into a prime (85831570163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3901435406 + ... + 3901435427.

It is an arithmetic number, because the mean of its divisors is an integer number (23408612502).

Almost surely, 2^85831579163 is an apocalyptic number.

85831579163 is a deficient number, since it is larger than the sum of its proper divisors (7802870845).

85831579163 is a wasteful number, since it uses less digits than its factorization.

85831579163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7802870844.

The product of its digits is 5443200, while the sum is 56.

The spelling of 85831579163 in words is "eighty-five billion, eight hundred thirty-one million, five hundred seventy-nine thousand, one hundred sixty-three".