6448857468 has 48 divisors (see below), whose sum is σ = 15560173440. Its totient is φ = 2077568064.

The previous prime is 6448857463. The next prime is 6448857473. The reversal of 6448857468 is 8647588446.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6448857463) and next prime (6448857473).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6448857463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33058 + ... + 118281.

It is an arithmetic number, because the mean of its divisors is an integer number (324170280).

Almost surely, 2^6448857468 is an apocalyptic number.

It is an amenable number.

6448857468 is an abundant number, since it is smaller than the sum of its proper divisors (9111315972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6448857468 is a wasteful number, since it uses less digits than its factorization.

6448857468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151466 (or 151464 counting only the distinct ones).

The product of its digits is 41287680, while the sum is 60.

The square root of 6448857468 is about 80304.7786124836. The cubic root of 6448857468 is about 1861.3480677045.

The spelling of 6448857468 in words is "six billion, four hundred forty-eight million, eight hundred fifty-seven thousand, four hundred sixty-eight".