28683012211 has 4 divisors (see below), whose sum is σ = 32780585392. Its totient is φ = 24585439032.

The previous prime is 28683012181. The next prime is 28683012227. The reversal of 28683012211 is 11221038682.

It is a happy number.

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

It is not a de Polignac number, because 28683012211 - 2⁹ = 28683011699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28683012011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2048786580 + ... + 2048786593.

It is an arithmetic number, because the mean of its divisors is an integer number (8195146348).

Almost surely, 2^28683012211 is an apocalyptic number.

28683012211 is a deficient number, since it is larger than the sum of its proper divisors (4097573181).

28683012211 is an equidigital number, since it uses as much as digits as its factorization.

28683012211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4097573180.

The product of its (nonzero) digits is 9216, while the sum is 34.

The spelling of 28683012211 in words is "twenty-eight billion, six hundred eighty-three million, twelve thousand, two hundred eleven".