213533250414 has 64 divisors (see below), whose sum is σ = 470480693760. Its totient is φ = 64070352000.

The previous prime is 213533250401. The next prime is 213533250433. The reversal of 213533250414 is 414052335312.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11652319 + ... + 11670629.

It is an arithmetic number, because the mean of its divisors is an integer number (7351260840).

Almost surely, 2^213533250414 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213533250414, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235240346880).

213533250414 is an abundant number, since it is smaller than the sum of its proper divisors (256947443346).

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

213533250414 is a wasteful number, since it uses less digits than its factorization.

213533250414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20057.

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 213533250414 its reverse (414052335312), we get a palindrome (627585585726).

The spelling of 213533250414 in words is "two hundred thirteen billion, five hundred thirty-three million, two hundred fifty thousand, four hundred fourteen".