444755444723543 has 2 divisors, whose sum is σ = 444755444723544. Its totient is φ = 444755444723542.

The previous prime is 444755444723539. The next prime is 444755444723671. The reversal of 444755444723543 is 345327444557444.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 444755444723543 - 2² = 444755444723539 is a prime.

It is a super-2 number, since 2×444755444723543² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 444755444723543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444755444723143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222377722361771 + 222377722361772.

It is an arithmetic number, because the mean of its divisors is an integer number (222377722361772).

Almost surely, 2^{444755444723543} is an apocalyptic number.

444755444723543 is a deficient number, since it is larger than the sum of its proper divisors (1).

444755444723543 is an equidigital number, since it uses as much as digits as its factorization.

444755444723543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1806336000, while the sum is 65.

The spelling of 444755444723543 in words is "four hundred forty-four trillion, seven hundred fifty-five billion, four hundred forty-four million, seven hundred twenty-three thousand, five hundred forty-three".