44442666445 has 4 divisors (see below), whose sum is σ = 53331199740. Its totient is φ = 35554133152.

The previous prime is 44442666427. The next prime is 44442666451. The reversal of 44442666445 is 54466624444.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15470881924 + 28971784521 = 124382^2 + 170211^2 .

It is a cyclic number.

It is not a de Polignac number, because 44442666445 - 2¹¹ = 44442664397 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4444266640 + ... + 4444266649.

It is an arithmetic number, because the mean of its divisors is an integer number (13332799935).

Almost surely, 2^44442666445 is an apocalyptic number.

It is an amenable number.

44442666445 is a deficient number, since it is larger than the sum of its proper divisors (8888533295).

44442666445 is an equidigital number, since it uses as much as digits as its factorization.

44442666445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8888533294.

The product of its digits is 8847360, while the sum is 49.

The spelling of 44442666445 in words is "forty-four billion, four hundred forty-two million, six hundred sixty-six thousand, four hundred forty-five".