1213675386647 has 2 divisors, whose sum is σ = 1213675386648. Its totient is φ = 1213675386646.

The previous prime is 1213675386631. The next prime is 1213675386653. The reversal of 1213675386647 is 7466835763121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1213675386647 - 2⁴ = 1213675386631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213675386607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606837693323 + 606837693324.

It is an arithmetic number, because the mean of its divisors is an integer number (606837693324).

Almost surely, 2^{1213675386647} is an apocalyptic number.

1213675386647 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213675386647 is an equidigital number, since it uses as much as digits as its factorization.

1213675386647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30481920, while the sum is 59.

The spelling of 1213675386647 in words is "one trillion, two hundred thirteen billion, six hundred seventy-five million, three hundred eighty-six thousand, six hundred forty-seven".