44061400021 has 2 divisors, whose sum is σ = 44061400022. Its totient is φ = 44061400020.

The previous prime is 44061399959. The next prime is 44061400027. The reversal of 44061400021 is 12000416044.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43359732900 + 701667121 = 208230^2 + 26489^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44061400021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 44061399965 and 44061400001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44061400027) 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 as a sum of consecutive naturals, namely, 22030700010 + 22030700011.

It is an arithmetic number, because the mean of its divisors is an integer number (22030700011).

Almost surely, 2^44061400021 is an apocalyptic number.

It is an amenable number.

44061400021 is a deficient number, since it is larger than the sum of its proper divisors (1).

44061400021 is an equidigital number, since it uses as much as digits as its factorization.

44061400021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 44061400021 its reverse (12000416044), we get a palindrome (56061816065).

The spelling of 44061400021 in words is "forty-four billion, sixty-one million, four hundred thousand, twenty-one".