28078114211 has 12 divisors (see below), whose sum is σ = 32718936168. Its totient is φ = 24025220352.

The previous prime is 28078114153. The next prime is 28078114223. The reversal of 28078114211 is 11241187082.

It is not a de Polignac number, because 28078114211 - 2¹⁰ = 28078113187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28078114511) 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, 468281 + ... + 524826.

It is an arithmetic number, because the mean of its divisors is an integer number (2726578014).

Almost surely, 2^28078114211 is an apocalyptic number.

28078114211 is a deficient number, since it is larger than the sum of its proper divisors (4640821957).

28078114211 is an equidigital number, since it uses as much as digits as its factorization.

28078114211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993698 (or 993691 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 35.

The spelling of 28078114211 in words is "twenty-eight billion, seventy-eight million, one hundred fourteen thousand, two hundred eleven".