44444400001 has 4 divisors (see below), whose sum is σ = 44852146900. Its totient is φ = 44036653104.

The previous prime is 44444399983. The next prime is 44444400047. The reversal of 44444400001 is 10000444444.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 18954680976 + 25489719025 = 137676^2 + 159655^2 .

It is a cyclic number.

It is not a de Polignac number, because 44444400001 - 2¹³ = 44444391809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44444400061) 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 in 3 ways as a sum of consecutive naturals, for example, 203873286 + ... + 203873503.

It is an arithmetic number, because the mean of its divisors is an integer number (11213036725).

Almost surely, 2^44444400001 is an apocalyptic number.

It is an amenable number.

44444400001 is a deficient number, since it is larger than the sum of its proper divisors (407746899).

44444400001 is a wasteful number, since it uses less digits than its factorization.

44444400001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407746898.

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 44444400001 its reverse (10000444444), we get a palindrome (54444844445).

The spelling of 44444400001 in words is "forty-four billion, four hundred forty-four million, four hundred thousand, one".