28978190341 has 2 divisors, whose sum is σ = 28978190342. Its totient is φ = 28978190340.

The previous prime is 28978190333. The next prime is 28978190459. The reversal of 28978190341 is 14309187982.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21456097441 + 7522092900 = 146479^2 + 86730^2 .

It is a cyclic number.

It is not a de Polignac number, because 28978190341 - 2³ = 28978190333 is a prime.

It is a super-3 number, since 3×28978190341³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28978194341) 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, 14489095170 + 14489095171.

It is an arithmetic number, because the mean of its divisors is an integer number (14489095171).

Almost surely, 2^28978190341 is an apocalyptic number.

It is an amenable number.

28978190341 is a deficient number, since it is larger than the sum of its proper divisors (1).

28978190341 is an equidigital number, since it uses as much as digits as its factorization.

28978190341 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 870912, while the sum is 52.

The spelling of 28978190341 in words is "twenty-eight billion, nine hundred seventy-eight million, one hundred ninety thousand, three hundred forty-one".