28005543241 has 16 divisors (see below), whose sum is σ = 30595840128. Its totient is φ = 25477804800.

The previous prime is 28005543239. The next prime is 28005543301. The reversal of 28005543241 is 14234550082.

It is a cyclic number.

It is not a de Polignac number, because 28005543241 - 2¹ = 28005543239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28005543197 and 28005543206.

It is not an unprimeable number, because it can be changed into a prime (28005543641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4354270 + ... + 4360696.

It is an arithmetic number, because the mean of its divisors is an integer number (1912240008).

Almost surely, 2^28005543241 is an apocalyptic number.

It is an amenable number.

28005543241 is a deficient number, since it is larger than the sum of its proper divisors (2590296887).

28005543241 is a wasteful number, since it uses less digits than its factorization.

28005543241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11232.

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

The spelling of 28005543241 in words is "twenty-eight billion, five million, five hundred forty-three thousand, two hundred forty-one".