12634246551061 has 4 divisors (see below), whose sum is σ = 12634386535372. Its totient is φ = 12634106566752.

The previous prime is 12634246551049. The next prime is 12634246551077. The reversal of 12634246551061 is 16015564243621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2918651060836 + 9715595490225 = 1708406^2 + 3116985^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12634246551061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12634246551461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69856686 + ... + 70037311.

It is an arithmetic number, because the mean of its divisors is an integer number (3158596633843).

Almost surely, 2^{12634246551061} is an apocalyptic number.

It is an amenable number.

12634246551061 is a deficient number, since it is larger than the sum of its proper divisors (139984311).

12634246551061 is an equidigital number, since it uses as much as digits as its factorization.

12634246551061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139984310.

The product of its (nonzero) digits is 1036800, while the sum is 46.

The spelling of 12634246551061 in words is "twelve trillion, six hundred thirty-four billion, two hundred forty-six million, five hundred fifty-one thousand, sixty-one".