448535134877621 has 8 divisors (see below), whose sum is σ = 489318873826464. Its totient is φ = 407752698861520.

The previous prime is 448535134877597. The next prime is 448535134877647. The reversal of 448535134877621 is 126778431535844.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-448535134877621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448535134870621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 325013315 + ... + 326390448.

It is an arithmetic number, because the mean of its divisors is an integer number (61164859228308).

Almost surely, 2^{448535134877621} is an apocalyptic number.

It is an amenable number.

448535134877621 is a deficient number, since it is larger than the sum of its proper divisors (40783738948843).

448535134877621 is a wasteful number, since it uses less digits than its factorization.

448535134877621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651466371.

The product of its digits is 541900800, while the sum is 68.

The spelling of 448535134877621 in words is "four hundred forty-eight trillion, five hundred thirty-five billion, one hundred thirty-four million, eight hundred seventy-seven thousand, six hundred twenty-one".