12560202761 has 4 divisors (see below), whose sum is σ = 12965370624. Its totient is φ = 12155034900.

The previous prime is 12560202709. The next prime is 12560202791. The reversal of 12560202761 is 16720206521.

12560202761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16720206521 = 89 ⋅187867489.

It is not a de Polignac number, because 12560202761 - 2²² = 12556008457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12560202791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202583885 + ... + 202583946.

It is an arithmetic number, because the mean of its divisors is an integer number (3241342656).

Almost surely, 2^12560202761 is an apocalyptic number.

It is an amenable number.

12560202761 is a deficient number, since it is larger than the sum of its proper divisors (405167863).

12560202761 is an equidigital number, since it uses as much as digits as its factorization.

12560202761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405167862.

The product of its (nonzero) digits is 10080, while the sum is 32.

The spelling of 12560202761 in words is "twelve billion, five hundred sixty million, two hundred two thousand, seven hundred sixty-one".