213611650459 has 2 divisors, whose sum is σ = 213611650460. Its totient is φ = 213611650458.

The previous prime is 213611650429. The next prime is 213611650559. The reversal of 213611650459 is 954056116312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213611650459 - 2³⁷ = 76172696987 is a prime.

It is not a weakly prime, because it can be changed into another prime (213611650429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106805825229 + 106805825230.

It is an arithmetic number, because the mean of its divisors is an integer number (106805825230).

Almost surely, 2^213611650459 is an apocalyptic number.

213611650459 is a deficient number, since it is larger than the sum of its proper divisors (1).

213611650459 is an equidigital number, since it uses as much as digits as its factorization.

213611650459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 213611650459 in words is "two hundred thirteen billion, six hundred eleven million, six hundred fifty thousand, four hundred fifty-nine".