6480993578 has 8 divisors (see below), whose sum is σ = 9763942980. Its totient is φ = 3226345920.

The previous prime is 6480993569. The next prime is 6480993587. The reversal of 6480993578 is 8753990846.

It is an interprime number because it is at equal distance from previous prime (6480993569) and next prime (6480993587).

It can be written as a sum of positive squares in 2 ways, for example, as 6457247449 + 23746129 = 80357^2 + 4873^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7074863 + ... + 7075778.

Almost surely, 2^6480993578 is an apocalyptic number.

6480993578 is a deficient number, since it is larger than the sum of its proper divisors (3282949402).

6480993578 is a wasteful number, since it uses less digits than its factorization.

6480993578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14150872.

The product of its (nonzero) digits is 13063680, while the sum is 59.

The square root of 6480993578 is about 80504.6183644143. The cubic root of 6480993578 is about 1864.4347850563.

The spelling of 6480993578 in words is "six billion, four hundred eighty million, nine hundred ninety-three thousand, five hundred seventy-eight".