213368438784 has 184 divisors, whose sum is σ = 588410449408. Its totient is φ = 68702699520.

The previous prime is 213368438737. The next prime is 213368438791. The reversal of 213368438784 is 487834863312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390069999 + ... + 390070545.

Almost surely, 2^213368438784 is an apocalyptic number.

213368438784 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213368438784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294205224704).

213368438784 is an abundant number, since it is smaller than the sum of its proper divisors (375042010624).

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

213368438784 is an frugal number, since it uses more digits than its factorization.

213368438784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625 (or 583 counting only the distinct ones).

The product of its digits is 18579456, while the sum is 57.

The spelling of 213368438784 in words is "two hundred thirteen billion, three hundred sixty-eight million, four hundred thirty-eight thousand, seven hundred eighty-four".