213551288272 has 80 divisors (see below), whose sum is σ = 498494066560. Its totient is φ = 86575620096.

The previous prime is 213551288231. The next prime is 213551288273. The reversal of 213551288272 is 272882155312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213551288273) 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, 1357588 + ... + 1506700.

It is an arithmetic number, because the mean of its divisors is an integer number (6231175832).

Almost surely, 2^213551288272 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 213551288272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249247033280).

213551288272 is an abundant number, since it is smaller than the sum of its proper divisors (284942778288).

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

213551288272 is a wasteful number, since it uses less digits than its factorization.

213551288272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149820 (or 149814 counting only the distinct ones).

The product of its digits is 537600, while the sum is 46.

The spelling of 213551288272 in words is "two hundred thirteen billion, five hundred fifty-one million, two hundred eighty-eight thousand, two hundred seventy-two".