444735544064557 has 8 divisors (see below), whose sum is σ = 446254498209080. Its totient is φ = 443218695194880.

The previous prime is 444735544064533. The next prime is 444735544064599. The reversal of 444735544064557 is 755460445537444.

It can be written as a sum of positive squares in 4 ways, for example, as 238575023623876 + 206160520440681 = 15445874^2 + 14358291^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 444735544064557 - 2³¹ = 444733396580909 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 444735544064492 and 444735544064501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444735544064657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 525895494 + ... + 526740487.

It is an arithmetic number, because the mean of its divisors is an integer number (55781812276135).

Almost surely, 2^{444735544064557} is an apocalyptic number.

It is an amenable number.

444735544064557 is a deficient number, since it is larger than the sum of its proper divisors (1518954144523).

444735544064557 is a wasteful number, since it uses less digits than its factorization.

444735544064557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052637423.

The product of its (nonzero) digits is 2257920000, while the sum is 67.

The spelling of 444735544064557 in words is "four hundred forty-four trillion, seven hundred thirty-five billion, five hundred forty-four million, sixty-four thousand, five hundred fifty-seven".