204443421743743 has 32 divisors (see below), whose sum is σ = 262752917962752. Its totient is φ = 154612460534400.

The previous prime is 204443421743681. The next prime is 204443421743797. The reversal of 204443421743743 is 347347124344402.

It is a happy number.

It is not a de Polignac number, because 204443421743743 - 2²⁵ = 204443388189311 is a prime.

It is a super-2 number, since 2×204443421743743² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204443421743843) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32475103 + ... + 38255968.

It is an arithmetic number, because the mean of its divisors is an integer number (8211028686336).

Almost surely, 2^{204443421743743} is an apocalyptic number.

204443421743743 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

204443421743743 is a deficient number, since it is larger than the sum of its proper divisors (58309496219009).

204443421743743 is a wasteful number, since it uses less digits than its factorization.

204443421743743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70732495.

The product of its (nonzero) digits is 21676032, while the sum is 52.

The spelling of 204443421743743 in words is "two hundred four trillion, four hundred forty-three billion, four hundred twenty-one million, seven hundred forty-three thousand, seven hundred forty-three".