445425609857481 has 48 divisors (see below), whose sum is σ = 726089471752320. Its totient is φ = 260644747104000.

The previous prime is 445425609857471. The next prime is 445425609857537. The reversal of 445425609857481 is 184758906524544.

445425609857481 is a `hidden beast` number, since 4 + 4 + 5 + 4 + 2 + 5 + 6 + 0 + 98 + 57 + 481 = 666.

It is not a de Polignac number, because 445425609857481 - 2¹¹ = 445425609855433 is a prime.

It is a super-2 number, since 2×445425609857481² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (445425609857411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 849671676 + ... + 850195746.

It is an arithmetic number, because the mean of its divisors is an integer number (15126863994840).

Almost surely, 2^{445425609857481} is an apocalyptic number.

It is an amenable number.

445425609857481 is a deficient number, since it is larger than the sum of its proper divisors (280663861894839).

445425609857481 is a wasteful number, since it uses less digits than its factorization.

445425609857481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820158 (or 820155 counting only the distinct ones).

The product of its (nonzero) digits is 1548288000, while the sum is 72.

The spelling of 445425609857481 in words is "four hundred forty-five trillion, four hundred twenty-five billion, six hundred nine million, eight hundred fifty-seven thousand, four hundred eighty-one".