213663667830 has 32 divisors (see below), whose sum is σ = 513224895744. Its totient is φ = 56928967776.

The previous prime is 213663667817. The next prime is 213663667849. The reversal of 213663667830 is 38766366312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2964442 + ... + 3035661.

It is an arithmetic number, because the mean of its divisors is an integer number (16038277992).

Almost surely, 2^213663667830 is an apocalyptic number.

213663667830 is an abundant number, since it is smaller than the sum of its proper divisors (299561227914).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213663667830 is a wasteful number, since it uses less digits than its factorization.

213663667830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6001300.

The product of its (nonzero) digits is 3919104, while the sum is 51.

The spelling of 213663667830 in words is "two hundred thirteen billion, six hundred sixty-three million, six hundred sixty-seven thousand, eight hundred thirty".