213426964309 has 8 divisors (see below), whose sum is σ = 230185954712. Its totient is φ = 196716764160.

The previous prime is 213426964301. The next prime is 213426964339. The reversal of 213426964309 is 903469624312.

It is a happy number.

213426964309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 8204374084 + 205222590225 = 90578^2 + 453015^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213426964309 - 2³ = 213426964301 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 (213426964301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12188472 + ... + 12205969.

It is an arithmetic number, because the mean of its divisors is an integer number (28773244339).

Almost surely, 2^213426964309 is an apocalyptic number.

It is an amenable number.

213426964309 is a deficient number, since it is larger than the sum of its proper divisors (16758990403).

213426964309 is a wasteful number, since it uses less digits than its factorization.

213426964309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24395127.

The product of its (nonzero) digits is 1679616, while the sum is 49.

The spelling of 213426964309 in words is "two hundred thirteen billion, four hundred twenty-six million, nine hundred sixty-four thousand, three hundred nine".