6512984478 has 288 divisors, whose sum is σ = 20223822528. Its totient is φ = 1468938240.

The previous prime is 6512984437. The next prime is 6512984479. The reversal of 6512984478 is 8744892156.

It is a happy number.

6512984478 is a `hidden beast` number, since 6 + 512 + 9 + 84 + 47 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6512984479) 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 143 ways as a sum of consecutive naturals, for example, 3368400 + ... + 3370332.

It is an arithmetic number, because the mean of its divisors is an integer number (70221606).

Almost surely, 2^6512984478 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6512984478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10111911264).

6512984478 is an abundant number, since it is smaller than the sum of its proper divisors (13710838050).

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

6512984478 is a wasteful number, since it uses less digits than its factorization.

6512984478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000 (or 1986 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The square root of 6512984478 is about 80703.0636221451. The cubic root of 6512984478 is about 1867.4974367045.

The spelling of 6512984478 in words is "six billion, five hundred twelve million, nine hundred eighty-four thousand, four hundred seventy-eight".