44204141621 has 2 divisors, whose sum is σ = 44204141622. Its totient is φ = 44204141620.

The previous prime is 44204141617. The next prime is 44204141627. The reversal of 44204141621 is 12614140244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36475270225 + 7728871396 = 190985^2 + 87914^2 .

It is a cyclic number.

It is not a de Polignac number, because 44204141621 - 2² = 44204141617 is a prime.

It is a super-2 number, since 2×44204141621² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44204141627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22102070810 + 22102070811.

It is an arithmetic number, because the mean of its divisors is an integer number (22102070811).

Almost surely, 2^44204141621 is an apocalyptic number.

It is an amenable number.

44204141621 is a deficient number, since it is larger than the sum of its proper divisors (1).

44204141621 is an equidigital number, since it uses as much as digits as its factorization.

44204141621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 44204141621 its reverse (12614140244), we get a palindrome (56818281865).

The spelling of 44204141621 in words is "forty-four billion, two hundred four million, one hundred forty-one thousand, six hundred twenty-one".