44000000000001 has 6 divisors (see below), whose sum is σ = 63555555555570. Its totient is φ = 29333333333328.

The previous prime is 43999999999981. The next prime is 44000000000009. The reversal of 44000000000001 is 10000000000044.

It can be written as a sum of positive squares in only one way, i.e., 28821339839601 + 15178660160400 = 5368551^2 + 3895980^2 .

It is not a de Polignac number, because 44000000000001 - 2⁶ = 43999999999937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 4888888888889 = 44000000000001 / (4 + 4 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 43999999999893 and 43999999999902.

It is not an unprimeable number, because it can be changed into a prime (44000000000009) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2444444444436 + ... + 2444444444453.

It is an arithmetic number, because the mean of its divisors is an integer number (10592592592595).

Almost surely, 2^{44000000000001} is an apocalyptic number.

It is an amenable number.

44000000000001 is a deficient number, since it is larger than the sum of its proper divisors (19555555555569).

44000000000001 is a wasteful number, since it uses less digits than its factorization.

44000000000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4888888888895 (or 4888888888892 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 44000000000001 its reverse (10000000000044), we get a palindrome (54000000000045).

The spelling of 44000000000001 in words is "forty-four trillion, one", and thus it is an aban number.