213585766328 has 32 divisors (see below), whose sum is σ = 436937105520. Its totient is φ = 97071744000.

The previous prime is 213585766327. The next prime is 213585766363. The reversal of 213585766328 is 823667585312.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213585766321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 535238 + ... + 844778.

Almost surely, 2^213585766328 is an apocalyptic number.

It is an amenable number.

213585766328 is an abundant number, since it is smaller than the sum of its proper divisors (223351339192).

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

213585766328 is a wasteful number, since it uses less digits than its factorization.

213585766328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317399 (or 317395 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 56.

The spelling of 213585766328 in words is "two hundred thirteen billion, five hundred eighty-five million, seven hundred sixty-six thousand, three hundred twenty-eight".