21284488598334 has 128 divisors (see below), whose sum is σ = 47602387058688. Its totient is φ = 6302425691520.

The previous prime is 21284488598327. The next prime is 21284488598357. The reversal of 21284488598334 is 43389588448212.

It is a super-2 number, since 2×21284488598334² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (69) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 362648739 + ... + 362707425.

It is an arithmetic number, because the mean of its divisors is an integer number (371893648896).

Almost surely, 2^{21284488598334} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21284488598334, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23801193529344).

21284488598334 is an abundant number, since it is smaller than the sum of its proper divisors (26317898460354).

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

21284488598334 is a wasteful number, since it uses less digits than its factorization.

21284488598334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60342.

The product of its digits is 424673280, while the sum is 69.

The spelling of 21284488598334 in words is "twenty-one trillion, two hundred eighty-four billion, four hundred eighty-eight million, five hundred ninety-eight thousand, three hundred thirty-four".