28282653821 has 2 divisors, whose sum is σ = 28282653822. Its totient is φ = 28282653820.

The previous prime is 28282653779. The next prime is 28282653853. The reversal of 28282653821 is 12835628282.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25300401721 + 2982252100 = 159061^2 + 54610^2 .

It is a cyclic number.

It is not a de Polignac number, because 28282653821 - 2²⁶ = 28215544957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28282653121) 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 as a sum of consecutive naturals, namely, 14141326910 + 14141326911.

It is an arithmetic number, because the mean of its divisors is an integer number (14141326911).

Almost surely, 2^28282653821 is an apocalyptic number.

It is an amenable number.

28282653821 is a deficient number, since it is larger than the sum of its proper divisors (1).

28282653821 is an equidigital number, since it uses as much as digits as its factorization.

28282653821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 737280, while the sum is 47.

The spelling of 28282653821 in words is "twenty-eight billion, two hundred eighty-two million, six hundred fifty-three thousand, eight hundred twenty-one".