6448860684 has 360 divisors, whose sum is σ = 20745618432. Its totient is φ = 1709009280.

The previous prime is 6448860679. The next prime is 6448860689. The reversal of 6448860684 is 4860688446.

It is an interprime number because it is at equal distance from previous prime (6448860679) and next prime (6448860689).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 6448860684.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6448860689) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 96251619 + ... + 96251685.

Almost surely, 2^6448860684 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6448860684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10372809216).

6448860684 is an abundant number, since it is smaller than the sum of its proper divisors (14296757748).

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

6448860684 is a wasteful number, since it uses less digits than its factorization.

6448860684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 7077888, while the sum is 54.

The square root of 6448860684 is about 80304.7986361961. The cubic root of 6448860684 is about 1861.3483771182.

The spelling of 6448860684 in words is "six billion, four hundred forty-eight million, eight hundred sixty thousand, six hundred eighty-four".