28875900029 has 2 divisors, whose sum is σ = 28875900030. Its totient is φ = 28875900028.

The previous prime is 28875900023. The next prime is 28875900049. The reversal of 28875900029 is 92000957882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28518765625 + 357134404 = 168875^2 + 18898^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28875900029 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28875900029.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28875900023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14437950014 + 14437950015.

It is an arithmetic number, because the mean of its divisors is an integer number (14437950015).

Almost surely, 2^28875900029 is an apocalyptic number.

It is an amenable number.

28875900029 is a deficient number, since it is larger than the sum of its proper divisors (1).

28875900029 is an equidigital number, since it uses as much as digits as its factorization.

28875900029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 50.

The spelling of 28875900029 in words is "twenty-eight billion, eight hundred seventy-five million, nine hundred thousand, twenty-nine".