12611629973 has 2 divisors, whose sum is σ = 12611629974. Its totient is φ = 12611629972.

The previous prime is 12611629949. The next prime is 12611629993. The reversal of 12611629973 is 37992611621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10420734724 + 2190895249 = 102082^2 + 46807^2 .

It is a cyclic number.

It is not a de Polignac number, because 12611629973 - 2²⁰ = 12610581397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12611629903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6305814986 + 6305814987.

It is an arithmetic number, because the mean of its divisors is an integer number (6305814987).

Almost surely, 2^12611629973 is an apocalyptic number.

It is an amenable number.

12611629973 is a deficient number, since it is larger than the sum of its proper divisors (1).

12611629973 is an equidigital number, since it uses as much as digits as its factorization.

12611629973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 47.

The spelling of 12611629973 in words is "twelve billion, six hundred eleven million, six hundred twenty-nine thousand, nine hundred seventy-three".