28523561041 has 8 divisors (see below), whose sum is σ = 29064674664. Its totient is φ = 27982556160.

The previous prime is 28523560981. The next prime is 28523561057. The reversal of 28523561041 is 14016532582.

It can be written as a sum of positive squares in 4 ways, for example, as 8148853441 + 20374707600 = 90271^2 + 142740^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28523561041 - 2¹⁷ = 28523429969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28523561071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 670321 + ... + 711601.

It is an arithmetic number, because the mean of its divisors is an integer number (3633084333).

Almost surely, 2^28523561041 is an apocalyptic number.

It is an amenable number.

28523561041 is a deficient number, since it is larger than the sum of its proper divisors (541113623).

28523561041 is a wasteful number, since it uses less digits than its factorization.

28523561041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54371.

The product of its (nonzero) digits is 57600, while the sum is 37.

The spelling of 28523561041 in words is "twenty-eight billion, five hundred twenty-three million, five hundred sixty-one thousand, forty-one".