12477974389 has 2 divisors, whose sum is σ = 12477974390. Its totient is φ = 12477974388.

The previous prime is 12477974357. The next prime is 12477974413. The reversal of 12477974389 is 98347977421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6898631364 + 5579343025 = 83058^2 + 74695^2 .

It is a cyclic number.

It is not a de Polignac number, because 12477974389 - 2⁵ = 12477974357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12477974339) 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 as a sum of consecutive naturals, namely, 6238987194 + 6238987195.

It is an arithmetic number, because the mean of its divisors is an integer number (6238987195).

Almost surely, 2^12477974389 is an apocalyptic number.

It is an amenable number.

12477974389 is a deficient number, since it is larger than the sum of its proper divisors (1).

12477974389 is an equidigital number, since it uses as much as digits as its factorization.

12477974389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21337344, while the sum is 61.

The spelling of 12477974389 in words is "twelve billion, four hundred seventy-seven million, nine hundred seventy-four thousand, three hundred eighty-nine".