544045442569 has 2 divisors, whose sum is σ = 544045442570. Its totient is φ = 544045442568.

The previous prime is 544045442543. The next prime is 544045442651. The reversal of 544045442569 is 965244540445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 533246076169 + 10799366400 = 730237^2 + 103920^2 .

It is a cyclic number.

It is not a de Polignac number, because 544045442569 - 2⁵ = 544045442537 is a prime.

It is a super-2 number, since 2×544045442569² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (544045442519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272022721284 + 272022721285.

It is an arithmetic number, because the mean of its divisors is an integer number (272022721285).

Almost surely, 2^544045442569 is an apocalyptic number.

It is an amenable number.

544045442569 is a deficient number, since it is larger than the sum of its proper divisors (1).

544045442569 is an equidigital number, since it uses as much as digits as its factorization.

544045442569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824000, while the sum is 52.

The spelling of 544045442569 in words is "five hundred forty-four billion, forty-five million, four hundred forty-two thousand, five hundred sixty-nine".