12761322407563 has 8 divisors (see below), whose sum is σ = 12807461057328. Its totient is φ = 12715201341024.

The previous prime is 12761322407549. The next prime is 12761322407591. The reversal of 12761322407563 is 36570422316721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12761322407563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12761322407503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2940781 + ... + 5845582.

It is an arithmetic number, because the mean of its divisors is an integer number (1600932632166).

Almost surely, 2^{12761322407563} is an apocalyptic number.

12761322407563 is a deficient number, since it is larger than the sum of its proper divisors (46138649765).

12761322407563 is an equidigital number, since it uses as much as digits as its factorization.

12761322407563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8791613.

The product of its (nonzero) digits is 2540160, while the sum is 49.

The spelling of 12761322407563 in words is "twelve trillion, seven hundred sixty-one billion, three hundred twenty-two million, four hundred seven thousand, five hundred sixty-three".