8478645135 has 64 divisors (see below), whose sum is σ = 14497394688. Its totient is φ = 4221448704.

The previous prime is 8478645121. The next prime is 8478645137. The reversal of 8478645135 is 5315468748.

It is not a de Polignac number, because 8478645135 - 2⁵ = 8478645103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8478645137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9939369 + ... + 9940221.

It is an arithmetic number, because the mean of its divisors is an integer number (226521792).

Almost surely, 2^8478645135 is an apocalyptic number.

8478645135 is a deficient number, since it is larger than the sum of its proper divisors (6018749553).

8478645135 is a wasteful number, since it uses less digits than its factorization.

8478645135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1544.

The product of its digits is 3225600, while the sum is 51.

The square root of 8478645135 is about 92079.5587250504. The cubic root of 8478645135 is about 2039.1170354651.

It can be divided in two parts, 84786 and 45135, that added together give a palindrome (129921).

The spelling of 8478645135 in words is "eight billion, four hundred seventy-eight million, six hundred forty-five thousand, one hundred thirty-five".