1213467236647 has 2 divisors, whose sum is σ = 1213467236648. Its totient is φ = 1213467236646.

The previous prime is 1213467236627. The next prime is 1213467236669. The reversal of 1213467236647 is 7466327643121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1213467236647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1213467236594 and 1213467236603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213467236627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606733618323 + 606733618324.

It is an arithmetic number, because the mean of its divisors is an integer number (606733618324).

Almost surely, 2^{1213467236647} is an apocalyptic number.

1213467236647 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213467236647 is an equidigital number, since it uses as much as digits as its factorization.

1213467236647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6096384, while the sum is 52.

The spelling of 1213467236647 in words is "one trillion, two hundred thirteen billion, four hundred sixty-seven million, two hundred thirty-six thousand, six hundred forty-seven".