12505740859 has 2 divisors, whose sum is σ = 12505740860. Its totient is φ = 12505740858.

The previous prime is 12505740809. The next prime is 12505740893. The reversal of 12505740859 is 95804750521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12505740859 - 2¹³ = 12505732667 is a prime.

It is not a weakly prime, because it can be changed into another prime (12505740809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6252870429 + 6252870430.

It is an arithmetic number, because the mean of its divisors is an integer number (6252870430).

Almost surely, 2^12505740859 is an apocalyptic number.

12505740859 is a deficient number, since it is larger than the sum of its proper divisors (1).

12505740859 is an equidigital number, since it uses as much as digits as its factorization.

12505740859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504000, while the sum is 46.

The spelling of 12505740859 in words is "twelve billion, five hundred five million, seven hundred forty thousand, eight hundred fifty-nine".