194425002180444 has 144 divisors (see below), whose sum is σ = 538969867204608. Its totient is φ = 54366404141952.

The previous prime is 194425002180421. The next prime is 194425002180467. The reversal of 194425002180444 is 444081200524491.

It is an interprime number because it is at equal distance from previous prime (194425002180421) and next prime (194425002180467).

It is a junction number, because it is equal to n+sod(n) for n = 194425002180393 and 194425002180402.

It is a congruent 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 47 ways as a sum of consecutive naturals, for example, 1091615862 + ... + 1091793954.

It is an arithmetic number, because the mean of its divisors is an integer number (3742846300032).

Almost surely, 2^{194425002180444} is an apocalyptic number.

194425002180444 is a gapful number since it is divisible by the number (14) 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 194425002180444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269484933602304).

194425002180444 is an abundant number, since it is smaller than the sum of its proper divisors (344544865024164).

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

194425002180444 is a wasteful number, since it uses less digits than its factorization.

194425002180444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217664 (or 217655 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 48.

The spelling of 194425002180444 in words is "one hundred ninety-four trillion, four hundred twenty-five billion, two million, one hundred eighty thousand, four hundred forty-four".