28043816204601 has 12 divisors (see below), whose sum is σ = 40511677777428. Its totient is φ = 18694057503744.

The previous prime is 28043816204563. The next prime is 28043816204609. The reversal of 28043816204601 is 10640261834082.

28043816204601 is a `hidden beast` number, since 2 + 8 + 0 + 4 + 3 + 8 + 16 + 20 + 4 + 601 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6349190457600 + 21694625747001 = 2519760^2 + 4657749^2 .

It is not a de Polignac number, because 28043816204601 - 2²² = 28043812010297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28043816204609) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 151566240 + ... + 151751153.

It is an arithmetic number, because the mean of its divisors is an integer number (3375973148119).

Almost surely, 2^{28043816204601} is an apocalyptic number.

It is an amenable number.

28043816204601 is a deficient number, since it is larger than the sum of its proper divisors (12467861572827).

28043816204601 is a wasteful number, since it uses less digits than its factorization.

28043816204601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303327672 (or 303327669 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The spelling of 28043816204601 in words is "twenty-eight trillion, forty-three billion, eight hundred sixteen million, two hundred four thousand, six hundred one".