204443421743742 has 32 divisors (see below), whose sum is σ = 419943079683744. Its totient is φ = 66305147184000.

The previous prime is 204443421743681. The next prime is 204443421743797. The reversal of 204443421743742 is 247347124344402.

It is a super-2 number, since 2×204443421743742² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12209892 + ... + 23621352.

It is an arithmetic number, because the mean of its divisors is an integer number (13123221240117).

Almost surely, 2^{204443421743742} is an apocalyptic number.

204443421743742 is an abundant number, since it is smaller than the sum of its proper divisors (215499657940002).

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

204443421743742 is a wasteful number, since it uses less digits than its factorization.

204443421743742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11492204.

The product of its (nonzero) digits is 14450688, while the sum is 51.

The spelling of 204443421743742 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-two".