28758053963437 has 2 divisors, whose sum is σ = 28758053963438. Its totient is φ = 28758053963436.

The previous prime is 28758053963389. The next prime is 28758053963447. The reversal of 28758053963437 is 73436935085782.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23638450839721 + 5119603123716 = 4861939^2 + 2262654^2 .

It is a cyclic number.

It is not a de Polignac number, because 28758053963437 - 2¹⁹ = 28758053439149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28758053963447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14379026981718 + 14379026981719.

It is an arithmetic number, because the mean of its divisors is an integer number (14379026981719).

Almost surely, 2^{28758053963437} is an apocalyptic number.

It is an amenable number.

28758053963437 is a deficient number, since it is larger than the sum of its proper divisors (1).

28758053963437 is an equidigital number, since it uses as much as digits as its factorization.

28758053963437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 914457600, while the sum is 70.

The spelling of 28758053963437 in words is "twenty-eight trillion, seven hundred fifty-eight billion, fifty-three million, nine hundred sixty-three thousand, four hundred thirty-seven".