12231546945677 has 2 divisors, whose sum is σ = 12231546945678. Its totient is φ = 12231546945676.

The previous prime is 12231546945641. The next prime is 12231546945697. The reversal of 12231546945677 is 77654964513221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7448254264201 + 4783292681476 = 2729149^2 + 2187074^2 .

It is a cyclic number.

It is not a de Polignac number, because 12231546945677 - 2³⁸ = 11956669038733 is a prime.

It is a super-2 number, since 2×12231546945677² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12231546945697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6115773472838 + 6115773472839.

It is an arithmetic number, because the mean of its divisors is an integer number (6115773472839).

Almost surely, 2^{12231546945677} is an apocalyptic number.

It is an amenable number.

12231546945677 is a deficient number, since it is larger than the sum of its proper divisors (1).

12231546945677 is an equidigital number, since it uses as much as digits as its factorization.

12231546945677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 76204800, while the sum is 62.

The spelling of 12231546945677 in words is "twelve trillion, two hundred thirty-one billion, five hundred forty-six million, nine hundred forty-five thousand, six hundred seventy-seven".