85311471099 has 8 divisors (see below), whose sum is σ = 113750408512. Its totient is φ = 56873423880.

The previous prime is 85311471073. The next prime is 85311471139. The reversal of 85311471099 is 99017411358.

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

It is not a de Polignac number, because 85311471099 - 2¹¹ = 85311469051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85311471199) 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, 48084 + ... + 415854.

It is an arithmetic number, because the mean of its divisors is an integer number (14218801064).

Almost surely, 2^85311471099 is an apocalyptic number.

85311471099 is a deficient number, since it is larger than the sum of its proper divisors (28438937413).

85311471099 is a wasteful number, since it uses less digits than its factorization.

85311471099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445097.

The product of its (nonzero) digits is 272160, while the sum is 48.

The spelling of 85311471099 in words is "eighty-five billion, three hundred eleven million, four hundred seventy-one thousand, ninety-nine".