213733821405280 has 96 divisors (see below), whose sum is σ = 551478460367520. Its totient is φ = 77632767160320.

The previous prime is 213733821405259. The next prime is 213733821405283. The reversal of 213733821405280 is 82504128337312.

It is a super-2 number, since 2×213733821405280² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213733821405283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67692325 + ... + 70779364.

It is an arithmetic number, because the mean of its divisors is an integer number (5744567295495).

Almost surely, 2^{213733821405280} is an apocalyptic number.

213733821405280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213733821405280 is an abundant number, since it is smaller than the sum of its proper divisors (337744638962240).

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

213733821405280 is a wasteful number, since it uses less digits than its factorization.

213733821405280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138472592 (or 138472584 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 49.

The spelling of 213733821405280 in words is "two hundred thirteen trillion, seven hundred thirty-three billion, eight hundred twenty-one million, four hundred five thousand, two hundred eighty".