20043442447285 has 8 divisors (see below), whose sum is σ = 24052918707360. Its totient is φ = 16034228777424.

The previous prime is 20043442447277. The next prime is 20043442447289. The reversal of 20043442447285 is 58274424434002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20043442447285 - 2³ = 20043442447277 is a prime.

It is a super-2 number, since 2×20043442447285² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20043442447289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65479587 + ... + 65784976.

It is an arithmetic number, because the mean of its divisors is an integer number (3006614838420).

Almost surely, 2^{20043442447285} is an apocalyptic number.

It is an amenable number.

20043442447285 is a deficient number, since it is larger than the sum of its proper divisors (4009476260075).

20043442447285 is a wasteful number, since it uses less digits than its factorization.

20043442447285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131295107.

The product of its (nonzero) digits is 6881280, while the sum is 49.

The spelling of 20043442447285 in words is "twenty trillion, forty-three billion, four hundred forty-two million, four hundred forty-seven thousand, two hundred eighty-five".