28877528929 has 2 divisors, whose sum is σ = 28877528930. Its totient is φ = 28877528928.

The previous prime is 28877528903. The next prime is 28877528947. The reversal of 28877528929 is 92982577882.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28510997904 + 366531025 = 168852^2 + 19145^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28877528929 is a prime.

It is not a weakly prime, because it can be changed into another prime (28877528129) 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, 14438764464 + 14438764465.

It is an arithmetic number, because the mean of its divisors is an integer number (14438764465).

Almost surely, 2^28877528929 is an apocalyptic number.

It is an amenable number.

28877528929 is a deficient number, since it is larger than the sum of its proper divisors (1).

28877528929 is an equidigital number, since it uses as much as digits as its factorization.

28877528929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81285120, while the sum is 67.

The spelling of 28877528929 in words is "twenty-eight billion, eight hundred seventy-seven million, five hundred twenty-eight thousand, nine hundred twenty-nine".