8478535791 has 16 divisors (see below), whose sum is σ = 12408082560. Its totient is φ = 5106978720.

The previous prime is 8478535781. The next prime is 8478535831. The reversal of 8478535791 is 1975358748.

It is a happy number.

It is not a de Polignac number, because 8478535791 - 2¹³ = 8478527599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8478535711) 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 15 ways as a sum of consecutive naturals, for example, 782736 + ... + 793493.

It is an arithmetic number, because the mean of its divisors is an integer number (775505160).

Almost surely, 2^8478535791 is an apocalyptic number.

8478535791 is a deficient number, since it is larger than the sum of its proper divisors (3929546769).

8478535791 is a wasteful number, since it uses less digits than its factorization.

8478535791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1576406.

The product of its digits is 8467200, while the sum is 57.

The square root of 8478535791 is about 92078.9649757207. The cubic root of 8478535791 is about 2039.1082696711.

The spelling of 8478535791 in words is "eight billion, four hundred seventy-eight million, five hundred thirty-five thousand, seven hundred ninety-one".