213882439309 has 16 divisors (see below), whose sum is σ = 272100643200. Its totient is φ = 166661638080.

The previous prime is 213882439307. The next prime is 213882439313. The reversal of 213882439309 is 903934288312.

It is not a de Polignac number, because 213882439309 - 2¹ = 213882439307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213882439307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28340044 + ... + 28347589.

It is an arithmetic number, because the mean of its divisors is an integer number (17006290200).

Almost surely, 2^213882439309 is an apocalyptic number.

It is an amenable number.

213882439309 is a deficient number, since it is larger than the sum of its proper divisors (58218203891).

213882439309 is an equidigital number, since it uses as much as digits as its factorization.

213882439309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56687665 (or 56687651 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 52.

The spelling of 213882439309 in words is "two hundred thirteen billion, eight hundred eighty-two million, four hundred thirty-nine thousand, three hundred nine".