44454612217 has 2 divisors, whose sum is σ = 44454612218. Its totient is φ = 44454612216.

The previous prime is 44454612203. The next prime is 44454612239. The reversal of 44454612217 is 71221645444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43218667881 + 1235944336 = 207891^2 + 35156^2 .

It is a cyclic number.

It is not a de Polignac number, because 44454612217 - 2¹¹ = 44454610169 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 44454612217.

It is not a weakly prime, because it can be changed into another prime (44454612017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22227306108 + 22227306109.

It is an arithmetic number, because the mean of its divisors is an integer number (22227306109).

Almost surely, 2^44454612217 is an apocalyptic number.

It is an amenable number.

44454612217 is a deficient number, since it is larger than the sum of its proper divisors (1).

44454612217 is an equidigital number, since it uses as much as digits as its factorization.

44454612217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 215040, while the sum is 40.

The spelling of 44454612217 in words is "forty-four billion, four hundred fifty-four million, six hundred twelve thousand, two hundred seventeen".