12547246764049 has 2 divisors, whose sum is σ = 12547246764050. Its totient is φ = 12547246764048.

The previous prime is 12547246763999. The next prime is 12547246764067. The reversal of 12547246764049 is 94046764274521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10641576952449 + 1905669811600 = 3262143^2 + 1380460^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12547246764049 is a prime.

It is not a weakly prime, because it can be changed into another prime (12547246864049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6273623382024 + 6273623382025.

It is an arithmetic number, because the mean of its divisors is an integer number (6273623382025).

Almost surely, 2^{12547246764049} is an apocalyptic number.

It is an amenable number.

12547246764049 is a deficient number, since it is larger than the sum of its proper divisors (1).

12547246764049 is an equidigital number, since it uses as much as digits as its factorization.

12547246764049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81285120, while the sum is 61.

The spelling of 12547246764049 in words is "twelve trillion, five hundred forty-seven billion, two hundred forty-six million, seven hundred sixty-four thousand, forty-nine".