6500001984 has 112 divisors (see below), whose sum is σ = 19758452736. Its totient is φ = 1847347200.

The previous prime is 6500001983. The next prime is 6500002001. The reversal of 6500001984 is 4891000056.

It is a tau number, because it is divible by the number of its divisors (112).

It is not an unprimeable number, because it can be changed into a prime (6500001983) 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, 244044 + ... + 269364.

Almost surely, 2^6500001984 is an apocalyptic number.

6500001984 is a gapful number since it is divisible by the number (64) 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 6500001984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9879226368).

6500001984 is an abundant number, since it is smaller than the sum of its proper divisors (13258450752).

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

6500001984 is a wasteful number, since it uses less digits than its factorization.

6500001984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25534 (or 25524 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 6500001984 is about 80622.5897872302. The cubic root of 6500001984 is about 1866.2557682881.

The spelling of 6500001984 in words is "six billion, five hundred million, one thousand, nine hundred eighty-four".