4539136468 has 12 divisors (see below), whose sum is σ = 8158177972. Its totient is φ = 2208228480.

The previous prime is 4539136379. The next prime is 4539136477. The reversal of 4539136468 is 8646319354.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4205781904 + 333354564 = 64852^2 + 18258^2 .

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15334773 + ... + 15335068.

Almost surely, 2^4539136468 is an apocalyptic number.

It is an amenable number.

4539136468 is a deficient number, since it is larger than the sum of its proper divisors (3619041504).

4539136468 is a wasteful number, since it uses less digits than its factorization.

4539136468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30669882 (or 30669880 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 49.

The square root of 4539136468 is about 67373.1138363071. The cubic root of 4539136468 is about 1655.7359557269.

The spelling of 4539136468 in words is "four billion, five hundred thirty-nine million, one hundred thirty-six thousand, four hundred sixty-eight".