213643005106 has 8 divisors (see below), whose sum is σ = 325718024364. Its totient is φ = 105070330320.

The previous prime is 213643005073. The next prime is 213643005127. The reversal of 213643005106 is 601500346312.

It can be written as a sum of positive squares in 2 ways, for example, as 192114779481 + 21528225625 = 438309^2 + 146725^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 875585965 + ... + 875586208.

Almost surely, 2^213643005106 is an apocalyptic number.

213643005106 is a deficient number, since it is larger than the sum of its proper divisors (112075019258).

213643005106 is a wasteful number, since it uses less digits than its factorization.

213643005106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1751172236.

The product of its (nonzero) digits is 12960, while the sum is 31.

The spelling of 213643005106 in words is "two hundred thirteen billion, six hundred forty-three million, five thousand, one hundred six".