448018472278631 has 4 divisors (see below), whose sum is σ = 448018515772200. Its totient is φ = 448018428785064.

The previous prime is 448018472278589. The next prime is 448018472278721. The reversal of 448018472278631 is 136872274810844.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 448018472278631 - 2⁶ = 448018472278567 is a prime.

It is a super-2 number, since 2×448018472278631² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448018472278831) 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, 3387785 + ... + 30124973.

It is an arithmetic number, because the mean of its divisors is an integer number (112004628943050).

Almost surely, 2^{448018472278631} is an apocalyptic number.

448018472278631 is a deficient number, since it is larger than the sum of its proper divisors (43493569).

448018472278631 is a wasteful number, since it uses less digits than its factorization.

448018472278631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43493568.

The product of its (nonzero) digits is 115605504, while the sum is 65.

The spelling of 448018472278631 in words is "four hundred forty-eight trillion, eighteen billion, four hundred seventy-two million, two hundred seventy-eight thousand, six hundred thirty-one".