49568738189 has 2 divisors, whose sum is σ = 49568738190. Its totient is φ = 49568738188.

The previous prime is 49568738173. The next prime is 49568738201. The reversal of 49568738189 is 98183786594.

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., 28182015625 + 21386722564 = 167875^2 + 146242^2 .

It is a cyclic number.

It is not a de Polignac number, because 49568738189 - 2⁴ = 49568738173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49568738129) 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, 24784369094 + 24784369095.

It is an arithmetic number, because the mean of its divisors is an integer number (24784369095).

Almost surely, 2^49568738189 is an apocalyptic number.

It is an amenable number.

49568738189 is a deficient number, since it is larger than the sum of its proper divisors (1).

49568738189 is an equidigital number, since it uses as much as digits as its factorization.

49568738189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 104509440, while the sum is 68.

The spelling of 49568738189 in words is "forty-nine billion, five hundred sixty-eight million, seven hundred thirty-eight thousand, one hundred eighty-nine".