444221042554 has 8 divisors (see below), whose sum is σ = 705527538228. Its totient is φ = 209045196480.

The previous prime is 444221042501. The next prime is 444221042563. The reversal of 444221042554 is 455240122444.

It can be written as a sum of positive squares in 2 ways, for example, as 440623802025 + 3597240529 = 663795^2 + 59977^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 6532662357 + ... + 6532662424.

Almost surely, 2^444221042554 is an apocalyptic number.

444221042554 is a deficient number, since it is larger than the sum of its proper divisors (261306495674).

444221042554 is a wasteful number, since it uses less digits than its factorization.

444221042554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13065324800.

The product of its (nonzero) digits is 204800, while the sum is 37.

Adding to 444221042554 its reverse (455240122444), we get a palindrome (899461164998).

The spelling of 444221042554 in words is "four hundred forty-four billion, two hundred twenty-one million, forty-two thousand, five hundred fifty-four".