4539805785124 has 27 divisors (see below), whose sum is σ = 8165467517907. Its totient is φ = 2208477461184.

The previous prime is 4539805785113. The next prime is 4539805785139. The reversal of 4539805785124 is 4215875089354.

It is a happy number.

The square root of 4539805785124 is 2130682.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 212906570724 + 4326899214400 = 461418^2 + 2080120^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 157656072 + ... + 157684864.

Almost surely, 2^{4539805785124} is an apocalyptic number.

4539805785124 is the 2130682-nd square number.

It is an amenable number.

4539805785124 is a deficient number, since it is larger than the sum of its proper divisors (3625661732783).

4539805785124 is an frugal number, since it uses more digits than its factorization.

4539805785124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57664 (or 28832 counting only the distinct ones).

The product of its (nonzero) digits is 48384000, while the sum is 61.

The spelling of 4539805785124 in words is "four trillion, five hundred thirty-nine billion, eight hundred five million, seven hundred eighty-five thousand, one hundred twenty-four".