213214512646 has 32 divisors (see below), whose sum is σ = 345368007360. Its totient is φ = 98417915904.

The previous prime is 213214512613. The next prime is 213214512701. The reversal of 213214512646 is 646215412312.

213214512646 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3589686 + ... + 3648598.

It is an arithmetic number, because the mean of its divisors is an integer number (10792750230).

Almost surely, 2^213214512646 is an apocalyptic number.

213214512646 is a deficient number, since it is larger than the sum of its proper divisors (132153494714).

213214512646 is a wasteful number, since it uses less digits than its factorization.

213214512646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61680.

The product of its digits is 69120, while the sum is 37.

Adding to 213214512646 its reverse (646215412312), we get a palindrome (859429924958).

The spelling of 213214512646 in words is "two hundred thirteen billion, two hundred fourteen million, five hundred twelve thousand, six hundred forty-six".