2194173085440 has 576 divisors, whose sum is σ = 8205969945600. Its totient is φ = 499451904000.

The previous prime is 2194173085417. The next prime is 2194173085453. The reversal of 2194173085440 is 445803714912.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 2194173085440.

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, 330593802 + ... + 330600438.

It is an arithmetic number, because the mean of its divisors is an integer number (14246475600).

Almost surely, 2^{2194173085440} is an apocalyptic number.

2194173085440 is a gapful number since it is divisible by the number (20) 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 2194173085440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4102984972800).

2194173085440 is an abundant number, since it is smaller than the sum of its proper divisors (6011796860160).

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

2194173085440 is an equidigital number, since it uses as much as digits as its factorization.

2194173085440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6933 (or 6905 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 2194173085440 in words is "two trillion, one hundred ninety-four billion, one hundred seventy-three million, eighty-five thousand, four hundred forty".