44450820061 has 4 divisors (see below), whose sum is σ = 44456623900. Its totient is φ = 44445016224.

The previous prime is 44450820049. The next prime is 44450820077. The reversal of 44450820061 is 16002805444.

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 41383764900 + 3067055161 = 203430^2 + 55381^2 .

It is a cyclic number.

It is not a de Polignac number, because 44450820061 - 2²¹ = 44448722909 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 44450819999 and 44450820026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44450820041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2890416 + ... + 2905753.

It is an arithmetic number, because the mean of its divisors is an integer number (11114155975).

Almost surely, 2^44450820061 is an apocalyptic number.

It is an amenable number.

44450820061 is a deficient number, since it is larger than the sum of its proper divisors (5803839).

44450820061 is an equidigital number, since it uses as much as digits as its factorization.

44450820061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5803838.

The product of its (nonzero) digits is 30720, while the sum is 34.

The spelling of 44450820061 in words is "forty-four billion, four hundred fifty million, eight hundred twenty thousand, sixty-one".