12349427477 has 2 divisors, whose sum is σ = 12349427478. Its totient is φ = 12349427476.

The previous prime is 12349427429. The next prime is 12349427539. The reversal of 12349427477 is 77472494321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12013475236 + 335952241 = 109606^2 + 18329^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12349427477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12349427417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6174713738 + 6174713739.

It is an arithmetic number, because the mean of its divisors is an integer number (6174713739).

Almost surely, 2^12349427477 is an apocalyptic number.

It is an amenable number.

12349427477 is a deficient number, since it is larger than the sum of its proper divisors (1).

12349427477 is an equidigital number, since it uses as much as digits as its factorization.

12349427477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2370816, while the sum is 50.

The spelling of 12349427477 in words is "twelve billion, three hundred forty-nine million, four hundred twenty-seven thousand, four hundred seventy-seven".