2189441716254 has 96 divisors (see below), whose sum is σ = 5336340033024. Its totient is φ = 643716279360.

The previous prime is 2189441716249. The next prime is 2189441716289. The reversal of 2189441716254 is 4526171449812.

2189441716254 is a `hidden beast` number, since 2 + 1 + 8 + 9 + 4 + 4 + 1 + 7 + 1 + 625 + 4 = 666.

It is a super-2 number, since 2×2189441716254² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2189441716254.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4994049 + ... + 5414739.

It is an arithmetic number, because the mean of its divisors is an integer number (55586875344).

Almost surely, 2^{2189441716254} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2189441716254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2668170016512).

2189441716254 is an abundant number, since it is smaller than the sum of its proper divisors (3146898316770).

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

2189441716254 is a wasteful number, since it uses less digits than its factorization.

2189441716254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421702 (or 421699 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The spelling of 2189441716254 in words is "two trillion, one hundred eighty-nine billion, four hundred forty-one million, seven hundred sixteen thousand, two hundred fifty-four".