448204139881 has 4 divisors (see below), whose sum is σ = 448218661264. Its totient is φ = 448189618500.

The previous prime is 448204139869. The next prime is 448204139921. The reversal of 448204139881 is 188931402844.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 448204139881 - 2¹¹ = 448204137833 is a prime.

It is a super-2 number, since 2×448204139881² (a number of 24 digits) contains 22 as substring.

It is the 669481-st Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (448204139381) by changing a digit.

It is a nontrivial repunit in base 669480.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7214295 + ... + 7276156.

It is an arithmetic number, because the mean of its divisors is an integer number (112054665316).

Almost surely, 2^448204139881 is an apocalyptic number.

It is an amenable number.

448204139881 is a deficient number, since it is larger than the sum of its proper divisors (14521383).

448204139881 is a wasteful number, since it uses less digits than its factorization.

448204139881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14521382.

The product of its (nonzero) digits is 1769472, while the sum is 52.

The spelling of 448204139881 in words is "four hundred forty-eight billion, two hundred four million, one hundred thirty-nine thousand, eight hundred eighty-one".