213373887272 has 128 divisors (see below), whose sum is σ = 503455008000. Its totient is φ = 84242882304.

The previous prime is 213373887271. The next prime is 213373887277. The reversal of 213373887272 is 272788373312.

It is not an unprimeable number, because it can be changed into a prime (213373887271) 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, 18650738 + ... + 18662174.

It is an arithmetic number, because the mean of its divisors is an integer number (3933242250).

Almost surely, 2^213373887272 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 213373887272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251727504000).

213373887272 is an abundant number, since it is smaller than the sum of its proper divisors (290081120728).

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

213373887272 is a wasteful number, since it uses less digits than its factorization.

213373887272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12000 (or 11982 counting only the distinct ones).

The product of its digits is 4741632, while the sum is 53.

The spelling of 213373887272 in words is "two hundred thirteen billion, three hundred seventy-three million, eight hundred eighty-seven thousand, two hundred seventy-two".