28827602449 has 2 divisors, whose sum is σ = 28827602450. Its totient is φ = 28827602448.

The previous prime is 28827602443. The next prime is 28827602471. The reversal of 28827602449 is 94420672882.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26300730625 + 2526871824 = 162175^2 + 50268^2 .

It is a cyclic number.

It is not a de Polignac number, because 28827602449 - 2⁹ = 28827601937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28827602396 and 28827602405.

It is not a weakly prime, because it can be changed into another prime (28827602443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14413801224 + 14413801225.

It is an arithmetic number, because the mean of its divisors is an integer number (14413801225).

Almost surely, 2^28827602449 is an apocalyptic number.

It is an amenable number.

28827602449 is a deficient number, since it is larger than the sum of its proper divisors (1).

28827602449 is an equidigital number, since it uses as much as digits as its factorization.

28827602449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3096576, while the sum is 52.

The spelling of 28827602449 in words is "twenty-eight billion, eight hundred twenty-seven million, six hundred two thousand, four hundred forty-nine".