85315883443 has 32 divisors (see below), whose sum is σ = 104520240000. Its totient is φ = 67976423424.

The previous prime is 85315883441. The next prime is 85315883449. The reversal of 85315883443 is 34438851358.

It is a happy number.

It is not a de Polignac number, because 85315883443 - 2¹ = 85315883441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85315883441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4101433 + ... + 4122181.

It is an arithmetic number, because the mean of its divisors is an integer number (3266257500).

Almost surely, 2^85315883443 is an apocalyptic number.

85315883443 is a deficient number, since it is larger than the sum of its proper divisors (19204356557).

85315883443 is a wasteful number, since it uses less digits than its factorization.

85315883443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21199.

The product of its digits is 5529600, while the sum is 52.

The spelling of 85315883443 in words is "eighty-five billion, three hundred fifteen million, eight hundred eighty-three thousand, four hundred forty-three".