448454569431 has 12 divisors (see below), whose sum is σ = 657239204216. Its totient is φ = 271790647920.

The previous prime is 448454569427. The next prime is 448454569441. The reversal of 448454569431 is 134965454844.

It is not a de Polignac number, because 448454569431 - 2² = 448454569427 is a prime.

It is a super-2 number, since 2×448454569431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448454569441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 617705656 + ... + 617706381.

Almost surely, 2^448454569431 is an apocalyptic number.

448454569431 is a deficient number, since it is larger than the sum of its proper divisors (208784634785).

448454569431 is a wasteful number, since it uses less digits than its factorization.

448454569431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235412062 (or 1235412051 counting only the distinct ones).

The product of its digits is 33177600, while the sum is 57.

The spelling of 448454569431 in words is "four hundred forty-eight billion, four hundred fifty-four million, five hundred sixty-nine thousand, four hundred thirty-one".