213543805210 has 48 divisors (see below), whose sum is σ = 415673664840. Its totient is φ = 78886290560.

The previous prime is 213543805193. The next prime is 213543805231. The reversal of 213543805210 is 12508345312.

It can be written as a sum of positive squares in 4 ways, for example, as 140222538369 + 73321266841 = 374463^2 + 270779^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 542581 + ... + 849400.

Almost surely, 2^213543805210 is an apocalyptic number.

213543805210 is a deficient number, since it is larger than the sum of its proper divisors (202129859630).

213543805210 is a wasteful number, since it uses less digits than its factorization.

213543805210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1392063 (or 1392040 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 213543805210 in words is "two hundred thirteen billion, five hundred forty-three million, eight hundred five thousand, two hundred ten".