448534075681 has 32 divisors (see below), whose sum is σ = 497859747840. Its totient is φ = 402188371200.

The previous prime is 448534075669. The next prime is 448534075687. The reversal of 448534075681 is 186570435844.

It is a cyclic number.

It is not a de Polignac number, because 448534075681 - 2¹³ = 448534067489 is a prime.

It is a super-2 number, since 2×448534075681² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (448534075687) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82585036 + ... + 82590466.

It is an arithmetic number, because the mean of its divisors is an integer number (15558117120).

Almost surely, 2^448534075681 is an apocalyptic number.

It is an amenable number.

448534075681 is a deficient number, since it is larger than the sum of its proper divisors (49325672159).

448534075681 is a wasteful number, since it uses less digits than its factorization.

448534075681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7885.

The product of its (nonzero) digits is 12902400, while the sum is 55.

The spelling of 448534075681 in words is "four hundred forty-eight billion, five hundred thirty-four million, seventy-five thousand, six hundred eighty-one".