448717929289 has 12 divisors (see below), whose sum is σ = 522085305924. Its totient is φ = 384536300064.

The previous prime is 448717929203. The next prime is 448717929293. The reversal of 448717929289 is 982929717844.

It can be written as a sum of positive squares in 2 ways, for example, as 257158523664 + 191559405625 = 507108^2 + 437675^2 .

It is not a de Polignac number, because 448717929289 - 2²¹ = 448715832137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (448717959289) 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, 699874 + ... + 1177819.

It is an arithmetic number, because the mean of its divisors is an integer number (43507108827).

Almost surely, 2^448717929289 is an apocalyptic number.

448717929289 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

448717929289 is a deficient number, since it is larger than the sum of its proper divisors (73367376635).

448717929289 is a wasteful number, since it uses less digits than its factorization.

448717929289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1882584 (or 1882577 counting only the distinct ones).

The product of its digits is 146313216, while the sum is 70.

The spelling of 448717929289 in words is "four hundred forty-eight billion, seven hundred seventeen million, nine hundred twenty-nine thousand, two hundred eighty-nine".