27958473211 has 4 divisors (see below), whose sum is σ = 27967076424. Its totient is φ = 27949870000.

The previous prime is 27958473199. The next prime is 27958473233. The reversal of 27958473211 is 11237485972.

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 27958473211 - 2¹⁵ = 27958440443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27958473911) 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, 4296730 + ... + 4303231.

It is an arithmetic number, because the mean of its divisors is an integer number (6991769106).

Almost surely, 2^27958473211 is an apocalyptic number.

27958473211 is a deficient number, since it is larger than the sum of its proper divisors (8603213).

27958473211 is an equidigital number, since it uses as much as digits as its factorization.

27958473211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8603212.

The product of its digits is 846720, while the sum is 49.

The spelling of 27958473211 in words is "twenty-seven billion, nine hundred fifty-eight million, four hundred seventy-three thousand, two hundred eleven".