12612515759 has 2 divisors, whose sum is σ = 12612515760. Its totient is φ = 12612515758.

The previous prime is 12612515749. The next prime is 12612515791. The reversal of 12612515759 is 95751521621.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12612515759 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12612515719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6306257879 + 6306257880.

It is an arithmetic number, because the mean of its divisors is an integer number (6306257880).

Almost surely, 2^12612515759 is an apocalyptic number.

12612515759 is a deficient number, since it is larger than the sum of its proper divisors (1).

12612515759 is an equidigital number, since it uses as much as digits as its factorization.

12612515759 is an evil number, because the sum of its binary digits is even.

The product of its digits is 189000, while the sum is 44.

The spelling of 12612515759 in words is "twelve billion, six hundred twelve million, five hundred fifteen thousand, seven hundred fifty-nine".