213533532647 has 2 divisors, whose sum is σ = 213533532648. Its totient is φ = 213533532646.

The previous prime is 213533532643. The next prime is 213533532679. The reversal of 213533532647 is 746235335312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213533532647 - 2² = 213533532643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213533532598 and 213533532607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213533532643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106766766323 + 106766766324.

It is an arithmetic number, because the mean of its divisors is an integer number (106766766324).

Almost surely, 2^213533532647 is an apocalyptic number.

213533532647 is a deficient number, since it is larger than the sum of its proper divisors (1).

213533532647 is an equidigital number, since it uses as much as digits as its factorization.

213533532647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1360800, while the sum is 44.

Adding to 213533532647 its reverse (746235335312), we get a palindrome (959768867959).

The spelling of 213533532647 in words is "two hundred thirteen billion, five hundred thirty-three million, five hundred thirty-two thousand, six hundred forty-seven".