44106561838561 has 4 divisors (see below), whose sum is σ = 44116073717652. Its totient is φ = 44097049959472.

The previous prime is 44106561838457. The next prime is 44106561838607. The reversal of 44106561838561 is 16583816560144.

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 27339502380961 + 16767059457600 = 5228719^2 + 4094760^2 .

It is a cyclic number.

It is not a de Polignac number, because 44106561838561 - 2³⁵ = 44072202100193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 44106561838496 and 44106561838505.

It is not an unprimeable number, because it can be changed into a prime (44106561868561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4755932590 + ... + 4755941863.

It is an arithmetic number, because the mean of its divisors is an integer number (11029018429413).

Almost surely, 2^{44106561838561} is an apocalyptic number.

It is an amenable number.

44106561838561 is a deficient number, since it is larger than the sum of its proper divisors (9511879091).

44106561838561 is an equidigital number, since it uses as much as digits as its factorization.

44106561838561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9511879090.

The product of its (nonzero) digits is 16588800, while the sum is 58.

The spelling of 44106561838561 in words is "forty-four trillion, one hundred six billion, five hundred sixty-one million, eight hundred thirty-eight thousand, five hundred sixty-one".