6865365648 has 80 divisors (see below), whose sum is σ = 18581159936. Its totient is φ = 2181548160.

The previous prime is 6865365631. The next prime is 6865365659. The reversal of 6865365648 is 8465635686.

It is a super-3 number, since 3×6865365648³ (a number of 30 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65265 + ... + 134127.

Almost surely, 2^6865365648 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 6865365648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9290579968).

6865365648 is an abundant number, since it is smaller than the sum of its proper divisors (11715794288).

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

6865365648 is a wasteful number, since it uses less digits than its factorization.

6865365648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68972 (or 68966 counting only the distinct ones).

The product of its digits is 24883200, while the sum is 57.

The square root of 6865365648 is about 82857.5020622756. The cubic root of 6865365648 is about 1900.5875973919.

The spelling of 6865365648 in words is "six billion, eight hundred sixty-five million, three hundred sixty-five thousand, six hundred forty-eight".