448833681421 has 4 divisors (see below), whose sum is σ = 453028388832. Its totient is φ = 444638974012.

The previous prime is 448833681397. The next prime is 448833681427. The reversal of 448833681421 is 124186338844.

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 448833681421 - 2²⁵ = 448800126989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448833681427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2097353545 + ... + 2097353758.

It is an arithmetic number, because the mean of its divisors is an integer number (113257097208).

Almost surely, 2^448833681421 is an apocalyptic number.

It is an amenable number.

448833681421 is a deficient number, since it is larger than the sum of its proper divisors (4194707411).

448833681421 is a wasteful number, since it uses less digits than its factorization.

448833681421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4194707410.

The product of its digits is 3538944, while the sum is 52.

The spelling of 448833681421 in words is "four hundred forty-eight billion, eight hundred thirty-three million, six hundred eighty-one thousand, four hundred twenty-one".