2189822125536 has 480 divisors, whose sum is σ = 7136844821568. Its totient is φ = 655164702720.

The previous prime is 2189822125531. The next prime is 2189822125537. The reversal of 2189822125536 is 6355212289812.

2189822125536 is a `hidden beast` number, since 2 + 1 + 8 + 9 + 82 + 2 + 1 + 2 + 553 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2189822125531) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 357752556 + ... + 357758676.

Almost surely, 2^{2189822125536} 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 2189822125536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3568422410784).

2189822125536 is an abundant number, since it is smaller than the sum of its proper divisors (4947022696032).

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

2189822125536 is a wasteful number, since it uses less digits than its factorization.

2189822125536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6536 (or 6519 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 54.

The spelling of 2189822125536 in words is "two trillion, one hundred eighty-nine billion, eight hundred twenty-two million, one hundred twenty-five thousand, five hundred thirty-six".