28532774911 has 2 divisors, whose sum is σ = 28532774912. Its totient is φ = 28532774910.

The previous prime is 28532774903. The next prime is 28532774987. The reversal of 28532774911 is 11947723582.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28532774911 - 2³ = 28532774903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28532774311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14266387455 + 14266387456.

It is an arithmetic number, because the mean of its divisors is an integer number (14266387456).

Almost surely, 2^28532774911 is an apocalyptic number.

28532774911 is a deficient number, since it is larger than the sum of its proper divisors (1).

28532774911 is an equidigital number, since it uses as much as digits as its factorization.

28532774911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 846720, while the sum is 49.

The spelling of 28532774911 in words is "twenty-eight billion, five hundred thirty-two million, seven hundred seventy-four thousand, nine hundred eleven".