213663736528 has 20 divisors (see below), whose sum is σ = 451607443488. Its totient is φ = 97119880160.

The previous prime is 213663736519. The next prime is 213663736543. The reversal of 213663736528 is 825637366312.

213663736528 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 3 ways as a sum of consecutive naturals, for example, 606999076 + ... + 606999427.

Almost surely, 2^213663736528 is an apocalyptic number.

It is an amenable number.

213663736528 is an abundant number, since it is smaller than the sum of its proper divisors (237943706960).

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

213663736528 is a wasteful number, since it uses less digits than its factorization.

213663736528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213998522 (or 1213998516 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 52.

The spelling of 213663736528 in words is "two hundred thirteen billion, six hundred sixty-three million, seven hundred thirty-six thousand, five hundred twenty-eight".