448100811421 has 4 divisors (see below), whose sum is σ = 449112326112. Its totient is φ = 447089296732.

The previous prime is 448100811391. The next prime is 448100811439. The reversal of 448100811421 is 124118001844.

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 448100811421 - 2⁷ = 448100811293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448100811461) by changing a digit.

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, 505756681 + ... + 505757566.

It is an arithmetic number, because the mean of its divisors is an integer number (112278081528).

Almost surely, 2^448100811421 is an apocalyptic number.

It is an amenable number.

448100811421 is a deficient number, since it is larger than the sum of its proper divisors (1011514691).

448100811421 is a wasteful number, since it uses less digits than its factorization.

448100811421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011514690.

The product of its (nonzero) digits is 8192, while the sum is 34.

It can be divided in two parts, 448100 and 811421, that added together give a palindrome (1259521).

The spelling of 448100811421 in words is "four hundred forty-eight billion, one hundred million, eight hundred eleven thousand, four hundred twenty-one".