213235682949 has 8 divisors (see below), whose sum is σ = 315904715520. Its totient is φ = 142157121948.

The previous prime is 213235682929. The next prime is 213235682951. The reversal of 213235682949 is 949286532312.

213235682949 is a `hidden beast` number, since 2 + 1 + 32 + 3 + 568 + 2 + 9 + 49 = 666.

213235682949 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 213235682949 - 2¹² = 213235678853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213235682895 and 213235682904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213235682929) 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, 3948808917 + ... + 3948808970.

It is an arithmetic number, because the mean of its divisors is an integer number (39488089440).

Almost surely, 2^213235682949 is an apocalyptic number.

It is an amenable number.

213235682949 is a deficient number, since it is larger than the sum of its proper divisors (102669032571).

213235682949 is an equidigital number, since it uses as much as digits as its factorization.

213235682949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7897617896 (or 7897617890 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 54.

The spelling of 213235682949 in words is "two hundred thirteen billion, two hundred thirty-five million, six hundred eighty-two thousand, nine hundred forty-nine".