44075276220721 has 2 divisors, whose sum is σ = 44075276220722. Its totient is φ = 44075276220720.

The previous prime is 44075276220719. The next prime is 44075276220839. The reversal of 44075276220721 is 12702267257044.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23063237856400 + 21012038364321 = 4802420^2 + 4583889^2 .

It is a cyclic number.

It is not a de Polignac number, because 44075276220721 - 2¹ = 44075276220719 is a prime.

Together with 44075276220719, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (44075276220121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22037638110360 + 22037638110361.

It is an arithmetic number, because the mean of its divisors is an integer number (22037638110361).

Almost surely, 2^{44075276220721} is an apocalyptic number.

It is an amenable number.

44075276220721 is a deficient number, since it is larger than the sum of its proper divisors (1).

44075276220721 is an equidigital number, since it uses as much as digits as its factorization.

44075276220721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2634240, while the sum is 49.

The spelling of 44075276220721 in words is "forty-four trillion, seventy-five billion, two hundred seventy-six million, two hundred twenty thousand, seven hundred twenty-one".