28934115869 has 2 divisors, whose sum is σ = 28934115870. Its totient is φ = 28934115868.

The previous prime is 28934115839. The next prime is 28934115871. The reversal of 28934115869 is 96851143982.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15797976100 + 13136139769 = 125690^2 + 114613^2 .

It is a cyclic number.

It is not a de Polignac number, because 28934115869 - 2¹⁶ = 28934050333 is a prime.

It is a super-2 number, since 2×28934115869² (a number of 22 digits) contains 22 as substring.

Together with 28934115871, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28934115809) 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, 14467057934 + 14467057935.

It is an arithmetic number, because the mean of its divisors is an integer number (14467057935).

Almost surely, 2^28934115869 is an apocalyptic number.

It is an amenable number.

28934115869 is a deficient number, since it is larger than the sum of its proper divisors (1).

28934115869 is an equidigital number, since it uses as much as digits as its factorization.

28934115869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3732480, while the sum is 56.

The spelling of 28934115869 in words is "twenty-eight billion, nine hundred thirty-four million, one hundred fifteen thousand, eight hundred sixty-nine".