2189993170050 has 1152 divisors, whose sum is σ = 7803220561920. Its totient is φ = 440042803200.

The previous prime is 2189993169989. The next prime is 2189993170121. The reversal of 2189993170050 is 500713999812.

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 575 ways as a sum of consecutive naturals, for example, 10379114445 + ... + 10379114655.

It is an arithmetic number, because the mean of its divisors is an integer number (6773628960).

Almost surely, 2^{2189993170050} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2189993170050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3901610280960).

2189993170050 is an abundant number, since it is smaller than the sum of its proper divisors (5613227391870).

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

2189993170050 is a wasteful number, since it uses less digits than its factorization.

2189993170050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 54.

The spelling of 2189993170050 in words is "two trillion, one hundred eighty-nine billion, nine hundred ninety-three million, one hundred seventy thousand, fifty".