213425614643 has 4 divisors (see below), whose sum is σ = 213719185680. Its totient is φ = 213132043608.

The previous prime is 213425614639. The next prime is 213425614663. The reversal of 213425614643 is 346416524312.

213425614643 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.

It is a cyclic number.

It is not a de Polignac number, because 213425614643 - 2² = 213425614639 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 213425614643.

It is not an unprimeable number, because it can be changed into a prime (213425614603) 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, 146784428 + ... + 146785881.

It is an arithmetic number, because the mean of its divisors is an integer number (53429796420).

Almost surely, 2^213425614643 is an apocalyptic number.

213425614643 is a deficient number, since it is larger than the sum of its proper divisors (293571037).

213425614643 is an equidigital number, since it uses as much as digits as its factorization.

213425614643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293571036.

The product of its digits is 414720, while the sum is 41.

The spelling of 213425614643 in words is "two hundred thirteen billion, four hundred twenty-five million, six hundred fourteen thousand, six hundred forty-three".