12505741939 has 2 divisors, whose sum is σ = 12505741940. Its totient is φ = 12505741938.

The previous prime is 12505741921. The next prime is 12505741967. The reversal of 12505741939 is 93914750521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12505741939 - 2¹¹ = 12505739891 is a prime.

It is not a weakly prime, because it can be changed into another prime (12505741139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6252870969 + 6252870970.

It is an arithmetic number, because the mean of its divisors is an integer number (6252870970).

Almost surely, 2^12505741939 is an apocalyptic number.

12505741939 is a deficient number, since it is larger than the sum of its proper divisors (1).

12505741939 is an equidigital number, since it uses as much as digits as its factorization.

12505741939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 340200, while the sum is 46.

The spelling of 12505741939 in words is "twelve billion, five hundred five million, seven hundred forty-one thousand, nine hundred thirty-nine".