28741586209924 has 81 divisors (see below), whose sum is σ = 58699888322607. Its totient is φ = 12277903776768.

The previous prime is 28741586209913. The next prime is 28741586209951. The reversal of 28741586209924 is 42990268514782.

The square root of 28741586209924 is 5361118.

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 7692135840900 + 21049450369024 = 2773470^2 + 4587968^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28741586209924.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 42706665652 + ... + 42706666324.

Almost surely, 2^{28741586209924} is an apocalyptic number.

28741586209924 is the 5361118-th square number.

It is an amenable number.

28741586209924 is an abundant number, since it is smaller than the sum of its proper divisors (29958302112683).

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

28741586209924 is an frugal number, since it uses more digits than its factorization.

28741586209924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2502 (or 1251 counting only the distinct ones).

The product of its (nonzero) digits is 139345920, while the sum is 67.

The spelling of 28741586209924 in words is "twenty-eight trillion, seven hundred forty-one billion, five hundred eighty-six million, two hundred nine thousand, nine hundred twenty-four".