213680739243 has 32 divisors (see below), whose sum is σ = 303117418240. Its totient is φ = 133510809600.

The previous prime is 213680739221. The next prime is 213680739271. The reversal of 213680739243 is 342937086312.

213680739243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 213680739243 - 2⁹ = 213680738731 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213680739192 and 213680739201.

It is not an unprimeable number, because it can be changed into a prime (213680739143) 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 31 ways as a sum of consecutive naturals, for example, 16951143 + ... + 16963743.

It is an arithmetic number, because the mean of its divisors is an integer number (9472419320).

Almost surely, 2^213680739243 is an apocalyptic number.

213680739243 is a deficient number, since it is larger than the sum of its proper divisors (89436678997).

213680739243 is a wasteful number, since it uses less digits than its factorization.

213680739243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15787.

The product of its (nonzero) digits is 1306368, while the sum is 48.

The spelling of 213680739243 in words is "two hundred thirteen billion, six hundred eighty million, seven hundred thirty-nine thousand, two hundred forty-three".