448488312977 has 4 divisors (see below), whose sum is σ = 451761950436. Its totient is φ = 445214675520.

The previous prime is 448488312971. The next prime is 448488312983. The reversal of 448488312977 is 779213884844.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (448488312971) and next prime (448488312983).

It can be written as a sum of positive squares in 2 ways, for example, as 162767061136 + 285721251841 = 403444^2 + 534529^2 .

It is a cyclic number.

It is not a de Polignac number, because 448488312977 - 2⁶ = 448488312913 is a prime.

It is a super-2 number, since 2×448488312977² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (448488312971) 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, 1636818524 + ... + 1636818797.

It is an arithmetic number, because the mean of its divisors is an integer number (112940487609).

Almost surely, 2^448488312977 is an apocalyptic number.

It is an amenable number.

448488312977 is a deficient number, since it is larger than the sum of its proper divisors (3273637459).

448488312977 is a wasteful number, since it uses less digits than its factorization.

448488312977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3273637458.

The product of its digits is 86704128, while the sum is 65.

The spelling of 448488312977 in words is "four hundred forty-eight billion, four hundred eighty-eight million, three hundred twelve thousand, nine hundred seventy-seven".