444234551010421 has 2 divisors, whose sum is σ = 444234551010422. Its totient is φ = 444234551010420.

The previous prime is 444234551010391. The next prime is 444234551010511. The reversal of 444234551010421 is 124010155432444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 308027561909796 + 136206989100625 = 17550714^2 + 11670775^2 .

It is a cyclic number.

It is not a de Polignac number, because 444234551010421 - 2¹¹ = 444234551008373 is a prime.

It is a super-3 number, since 3×444234551010421³ (a number of 45 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444234551010221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222117275505210 + 222117275505211.

It is an arithmetic number, because the mean of its divisors is an integer number (222117275505211).

Almost surely, 2^{444234551010421} is an apocalyptic number.

It is an amenable number.

444234551010421 is a deficient number, since it is larger than the sum of its proper divisors (1).

444234551010421 is an equidigital number, since it uses as much as digits as its factorization.

444234551010421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 307200, while the sum is 40.

The spelling of 444234551010421 in words is "four hundred forty-four trillion, two hundred thirty-four billion, five hundred fifty-one million, ten thousand, four hundred twenty-one".