12505741973 has 2 divisors, whose sum is σ = 12505741974. Its totient is φ = 12505741972.

The previous prime is 12505741967. The next prime is 12505742009. The reversal of 12505741973 is 37914750521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9405702289 + 3100039684 = 96983^2 + 55678^2 .

It is a cyclic number.

It is not a de Polignac number, because 12505741973 - 2¹⁶ = 12505676437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12505741903) 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, 6252870986 + 6252870987.

It is an arithmetic number, because the mean of its divisors is an integer number (6252870987).

Almost surely, 2^12505741973 is an apocalyptic number.

It is an amenable number.

12505741973 is a deficient number, since it is larger than the sum of its proper divisors (1).

12505741973 is an equidigital number, since it uses as much as digits as its factorization.

12505741973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 264600, while the sum is 44.

The spelling of 12505741973 in words is "twelve billion, five hundred five million, seven hundred forty-one thousand, nine hundred seventy-three".