4618539136 has 32 divisors (see below), whose sum is σ = 9425421180. Its totient is φ = 2252943360.

The previous prime is 4618539131. The next prime is 4618539139. The reversal of 4618539136 is 6319358164.

It can be written as a sum of positive squares in 2 ways, for example, as 3040860736 + 1577678400 = 55144^2 + 39720^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (4618539131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 434781 + ... + 445276.

Almost surely, 2^4618539136 is an apocalyptic number.

It is an amenable number.

4618539136 is an abundant number, since it is smaller than the sum of its proper divisors (4806882044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4618539136 is an equidigital number, since it uses as much as digits as its factorization.

4618539136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880112 (or 880100 counting only the distinct ones).

The product of its digits is 466560, while the sum is 46.

The square root of 4618539136 is about 67959.8347261086. The cubic root of 4618539136 is about 1665.3347433027.

The spelling of 4618539136 in words is "four billion, six hundred eighteen million, five hundred thirty-nine thousand, one hundred thirty-six".