28542075136 has 27 divisors (see below), whose sum is σ = 56978053951. Its totient is φ = 14269686016.

The previous prime is 28542075113. The next prime is 28542075137. The reversal of 28542075136 is 63157024582.

The square root of 28542075136 is 168944.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28542075092 and 28542075101.

It is not an unprimeable number, because it can be changed into a prime (28542075137) by changing a digit.

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 2 ways as a sum of consecutive naturals, for example, 2697825 + ... + 2708383.

Almost surely, 2^28542075136 is an apocalyptic number.

28542075136 is the 168944-th square number.

It is an amenable number.

28542075136 is a deficient number, since it is larger than the sum of its proper divisors (28435978815).

28542075136 is an frugal number, since it uses more digits than its factorization.

28542075136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21134 (or 10561 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 43.

The spelling of 28542075136 in words is "twenty-eight billion, five hundred forty-two million, seventy-five thousand, one hundred thirty-six".