213233757684 has 96 divisors (see below), whose sum is σ = 528911335680. Its totient is φ = 66734502912.

The previous prime is 213233757683. The next prime is 213233757743. The reversal of 213233757684 is 486757332312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213233757683) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30602769 + ... + 30609735.

It is an arithmetic number, because the mean of its divisors is an integer number (5509493080).

Almost surely, 2^213233757684 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213233757684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264455667840).

213233757684 is an abundant number, since it is smaller than the sum of its proper divisors (315677577996).

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

213233757684 is a wasteful number, since it uses less digits than its factorization.

213233757684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9417 (or 9415 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 51.

The spelling of 213233757684 in words is "two hundred thirteen billion, two hundred thirty-three million, seven hundred fifty-seven thousand, six hundred eighty-four".