28045531024 has 45 divisors (see below), whose sum is σ = 63220332081. Its totient is φ = 12017503680.

The previous prime is 28045530979. The next prime is 28045531037. The reversal of 28045531024 is 42013554082.

The square root of 28045531024 is 167468.

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

It can be written as a sum of positive squares in only one way, i.e., 754491024 + 27291040000 = 27468^2 + 165200^2 .

It is a Duffinian 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 8 ways as a sum of consecutive naturals, for example, 4686114 + ... + 4692094.

Almost surely, 2^28045531024 is an apocalyptic number.

28045531024 is the 167468-th square number.

It is an amenable number.

28045531024 is an abundant number, since it is smaller than the sum of its proper divisors (35174801057).

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

28045531024 is an frugal number, since it uses more digits than its factorization.

28045531024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11984 (or 5990 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

The spelling of 28045531024 in words is "twenty-eight billion, forty-five million, five hundred thirty-one thousand, twenty-four".