12338573861 has 2 divisors, whose sum is σ = 12338573862. Its totient is φ = 12338573860.

The previous prime is 12338573857. The next prime is 12338573867. The reversal of 12338573861 is 16837583321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11757281761 + 581292100 = 108431^2 + 24110^2 .

It is a cyclic number.

It is not a de Polignac number, because 12338573861 - 2² = 12338573857 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12338573867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6169286930 + 6169286931.

It is an arithmetic number, because the mean of its divisors is an integer number (6169286931).

Almost surely, 2^12338573861 is an apocalyptic number.

It is an amenable number.

12338573861 is a deficient number, since it is larger than the sum of its proper divisors (1).

12338573861 is an equidigital number, since it uses as much as digits as its factorization.

12338573861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 47.

The spelling of 12338573861 in words is "twelve billion, three hundred thirty-eight million, five hundred seventy-three thousand, eight hundred sixty-one".