28547307841 has 8 divisors (see below), whose sum is σ = 31493090664. Its totient is φ = 25708644480.

The previous prime is 28547307839. The next prime is 28547307947. The reversal of 28547307841 is 14870374582.

It can be written as a sum of positive squares in 4 ways, for example, as 4438224400 + 24109083441 = 66620^2 + 155271^2 .

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 28547307841 - 2¹ = 28547307839 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28547307241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26779306 + ... + 26780371.

It is an arithmetic number, because the mean of its divisors is an integer number (3936636333).

Almost surely, 2^28547307841 is an apocalyptic number.

It is an amenable number.

28547307841 is a deficient number, since it is larger than the sum of its proper divisors (2945782823).

28547307841 is a wasteful number, since it uses less digits than its factorization.

28547307841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53559731.

The product of its (nonzero) digits is 1505280, while the sum is 49.

The spelling of 28547307841 in words is "twenty-eight billion, five hundred forty-seven million, three hundred seven thousand, eight hundred forty-one".