445289726248 has 8 divisors (see below), whose sum is σ = 834918236730. Its totient is φ = 222644863120.

The previous prime is 445289726243. The next prime is 445289726251. The reversal of 445289726248 is 842627982544.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 308982563044 + 136307163204 = 555862^2 + 369198^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (445289726243) 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, 27830607883 + ... + 27830607898.

Almost surely, 2^445289726248 is an apocalyptic number.

It is an amenable number.

445289726248 is a deficient number, since it is larger than the sum of its proper divisors (389628510482).

445289726248 is a wasteful number, since it uses less digits than its factorization.

445289726248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55661215787 (or 55661215783 counting only the distinct ones).

The product of its digits is 61931520, while the sum is 61.

The spelling of 445289726248 in words is "four hundred forty-five billion, two hundred eighty-nine million, seven hundred twenty-six thousand, two hundred forty-eight".