28100704361 has 4 divisors (see below), whose sum is σ = 28103831172. Its totient is φ = 28097577552.

The previous prime is 28100704327. The next prime is 28100704363. The reversal of 28100704361 is 16340700182.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21662246761 + 6438457600 = 147181^2 + 80240^2 .

It is a cyclic number.

It is not a de Polignac number, because 28100704361 - 2⁶ = 28100704297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28100704363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1549886 + ... + 1567911.

It is an arithmetic number, because the mean of its divisors is an integer number (7025957793).

Almost surely, 2^28100704361 is an apocalyptic number.

It is an amenable number.

28100704361 is a deficient number, since it is larger than the sum of its proper divisors (3126811).

28100704361 is an equidigital number, since it uses as much as digits as its factorization.

28100704361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3126810.

The product of its (nonzero) digits is 8064, while the sum is 32.

The spelling of 28100704361 in words is "twenty-eight billion, one hundred million, seven hundred four thousand, three hundred sixty-one".