213855883724 has 96 divisors (see below), whose sum is σ = 442278942336. Its totient is φ = 88576081920.

The previous prime is 213855883711. The next prime is 213855883729. The reversal of 213855883724 is 427388558312.

It is a self number, because there is not a number n which added to its sum of digits gives 213855883724.

It is not an unprimeable number, because it can be changed into a prime (213855883729) 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, 93263522 + ... + 93265814.

It is an arithmetic number, because the mean of its divisors is an integer number (4607072316).

Almost surely, 2^213855883724 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 213855883724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221139471168).

213855883724 is an abundant number, since it is smaller than the sum of its proper divisors (228423058612).

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

213855883724 is a wasteful number, since it uses less digits than its factorization.

213855883724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3075 (or 3073 counting only the distinct ones).

The product of its digits is 12902400, while the sum is 56.

The spelling of 213855883724 in words is "two hundred thirteen billion, eight hundred fifty-five million, eight hundred eighty-three thousand, seven hundred twenty-four".