6448341720 has 128 divisors (see below), whose sum is σ = 20081571840. Its totient is φ = 1655293440.

The previous prime is 6448341643. The next prime is 6448341727. The reversal of 6448341720 is 271438446.

It is a super-2 number, since 2×6448341720² = 83162221875785116800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6448341727) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 334669 + ... + 353411.

It is an arithmetic number, because the mean of its divisors is an integer number (156887280).

Almost surely, 2^6448341720 is an apocalyptic number.

6448341720 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6448341720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10040785920).

6448341720 is an abundant number, since it is smaller than the sum of its proper divisors (13633230120).

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

6448341720 is a wasteful number, since it uses less digits than its factorization.

6448341720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18865 (or 18861 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 39.

The square root of 6448341720 is about 80301.5673570572. The cubic root of 6448341720 is about 1861.2984458844.

The spelling of 6448341720 in words is "six billion, four hundred forty-eight million, three hundred forty-one thousand, seven hundred twenty".