28690000529 has 2 divisors, whose sum is σ = 28690000530. Its totient is φ = 28690000528.

The previous prime is 28690000519. The next prime is 28690000561. The reversal of 28690000529 is 92500009682.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27646710529 + 1043290000 = 166273^2 + 32300^2 .

It is a cyclic number.

It is not a de Polignac number, because 28690000529 - 2¹⁶ = 28689934993 is a prime.

It is a super-2 number, since 2×28690000529² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28690000519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14345000264 + 14345000265.

It is an arithmetic number, because the mean of its divisors is an integer number (14345000265).

Almost surely, 2^28690000529 is an apocalyptic number.

It is an amenable number.

28690000529 is a deficient number, since it is larger than the sum of its proper divisors (1).

28690000529 is an equidigital number, since it uses as much as digits as its factorization.

28690000529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 41.

The spelling of 28690000529 in words is "twenty-eight billion, six hundred ninety million, five hundred twenty-nine", and thus it is an aban number.