6480641852 has 24 divisors (see below), whose sum is σ = 11457331200.
Its totient is φ = 3207239280.
The previous prime is 6480641819. The next prime is 6480641903. The reversal of 6480641852 is 2581460846.
It is a happy number.
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, 204149 + ... + 233747.
It is an arithmetic number, because the mean of its divisors is an integer number (477388800).
Almost surely, 26480641852 is an apocalyptic number.
It is an amenable number.
6480641852 is a deficient number, since it is larger than the sum of its proper divisors (4976689348).
6480641852 is a wasteful number, since it uses less digits than its factorization.
6480641852 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 30161 (or 30159 counting only the distinct ones).
The product of its (nonzero) digits is 368640, while the sum is 44.
The square root of 6480641852 is about 80502.4338265620.
The cubic root of 6480641852 is about 1864.4010565832.
The spelling of 6480641852 in words is "six billion, four hundred eighty million, six hundred forty-one thousand, eight hundred fifty-two".