213413096857 has 4 divisors (see below), whose sum is σ = 220297390336. Its totient is φ = 206528803380.

The previous prime is 213413096839. The next prime is 213413096891. The reversal of 213413096857 is 758690314312.

213413096857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213413096857 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213413096857.

It is not an unprimeable number, because it can be changed into a prime (213413093857) 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 3 ways as a sum of consecutive naturals, for example, 3442146693 + ... + 3442146754.

It is an arithmetic number, because the mean of its divisors is an integer number (55074347584).

It is a 1-persistent number, because it is pandigital, but 2⋅213413096857 = 426826193714 is not.

Almost surely, 2^213413096857 is an apocalyptic number.

It is an amenable number.

213413096857 is a deficient number, since it is larger than the sum of its proper divisors (6884293479).

213413096857 is an equidigital number, since it uses as much as digits as its factorization.

213413096857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6884293478.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 213413096857 in words is "two hundred thirteen billion, four hundred thirteen million, ninety-six thousand, eight hundred fifty-seven".