28969034390129 has 2 divisors, whose sum is σ = 28969034390130. Its totient is φ = 28969034390128.

The previous prime is 28969034390083. The next prime is 28969034390159. The reversal of 28969034390129 is 92109343096982.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28963254589504 + 5779800625 = 5381752^2 + 76025^2 .

It is a cyclic number.

It is not a de Polignac number, because 28969034390129 - 2³² = 28964739422833 is a prime.

It is not a weakly prime, because it can be changed into another prime (28969034390159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14484517195064 + 14484517195065.

It is an arithmetic number, because the mean of its divisors is an integer number (14484517195065).

Almost surely, 2^{28969034390129} is an apocalyptic number.

It is an amenable number.

28969034390129 is a deficient number, since it is larger than the sum of its proper divisors (1).

28969034390129 is an equidigital number, since it uses as much as digits as its factorization.

28969034390129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45349632, while the sum is 65.

The spelling of 28969034390129 in words is "twenty-eight trillion, nine hundred sixty-nine billion, thirty-four million, three hundred ninety thousand, one hundred twenty-nine".