204446456243623 has 4 divisors (see below), whose sum is σ = 223032497720328. Its totient is φ = 185860414766920.

The previous prime is 204446456243573. The next prime is 204446456243669. The reversal of 204446456243623 is 326342654644402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 204446456243623 - 2²¹ = 204446454146471 is a prime.

It is a super-2 number, since 2×204446456243623² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204446456241623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9293020738336 + ... + 9293020738357.

It is an arithmetic number, because the mean of its divisors is an integer number (55758124430082).

Almost surely, 2^{204446456243623} is an apocalyptic number.

204446456243623 is a deficient number, since it is larger than the sum of its proper divisors (18586041476705).

204446456243623 is a wasteful number, since it uses less digits than its factorization.

204446456243623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18586041476704.

The product of its (nonzero) digits is 79626240, while the sum is 55.

The spelling of 204446456243623 in words is "two hundred four trillion, four hundred forty-six billion, four hundred fifty-six million, two hundred forty-three thousand, six hundred twenty-three".