28649027633 has 2 divisors, whose sum is σ = 28649027634. Its totient is φ = 28649027632.

The previous prime is 28649027593. The next prime is 28649027647. The reversal of 28649027633 is 33672094682.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23923427584 + 4725600049 = 154672^2 + 68743^2 .

It is a cyclic number.

It is not a de Polignac number, because 28649027633 - 2⁶ = 28649027569 is a prime.

It is not a weakly prime, because it can be changed into another prime (28649027653) 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, 14324513816 + 14324513817.

It is an arithmetic number, because the mean of its divisors is an integer number (14324513817).

Almost surely, 2^28649027633 is an apocalyptic number.

It is an amenable number.

28649027633 is a deficient number, since it is larger than the sum of its proper divisors (1).

28649027633 is an equidigital number, since it uses as much as digits as its factorization.

28649027633 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2612736, while the sum is 50.

The spelling of 28649027633 in words is "twenty-eight billion, six hundred forty-nine million, twenty-seven thousand, six hundred thirty-three".