44455054400021 has 2 divisors, whose sum is σ = 44455054400022. Its totient is φ = 44455054400020.

The previous prime is 44455054399927. The next prime is 44455054400093. The reversal of 44455054400021 is 12000445055444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40308353440996 + 4146700959025 = 6348886^2 + 2036345^2 .

It is a cyclic number.

It is not a de Polignac number, because 44455054400021 - 2²² = 44455050205717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44455054409021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22227527200010 + 22227527200011.

It is an arithmetic number, because the mean of its divisors is an integer number (22227527200011).

Almost surely, 2^{44455054400021} is an apocalyptic number.

It is an amenable number.

44455054400021 is a deficient number, since it is larger than the sum of its proper divisors (1).

44455054400021 is an equidigital number, since it uses as much as digits as its factorization.

44455054400021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256000, while the sum is 38.

Adding to 44455054400021 its reverse (12000445055444), we get a palindrome (56455499455465).

The spelling of 44455054400021 in words is "forty-four trillion, four hundred fifty-five billion, fifty-four million, four hundred thousand, twenty-one".