6448348380 has 24 divisors (see below), whose sum is σ = 18055375632. Its totient is φ = 1719559552.

The previous prime is 6448348373. The next prime is 6448348411. The reversal of 6448348380 is 838438446.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53736177 + ... + 53736296.

It is an arithmetic number, because the mean of its divisors is an integer number (752307318).

Almost surely, 2^6448348380 is an apocalyptic number.

6448348380 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6448348380 is an abundant number, since it is smaller than the sum of its proper divisors (11607027252).

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

6448348380 is a wasteful number, since it uses less digits than its factorization.

6448348380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107472485 (or 107472483 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 48.

The square root of 6448348380 is about 80301.6088257265. The cubic root of 6448348380 is about 1861.2990866818.

The spelling of 6448348380 in words is "six billion, four hundred forty-eight million, three hundred forty-eight thousand, three hundred eighty".