6480128599 has 4 divisors (see below), whose sum is σ = 7405861264. Its totient is φ = 5554395936.

The previous prime is 6480128591. The next prime is 6480128639. The reversal of 6480128599 is 9958210846.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6480128599 - 2³ = 6480128591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6480128591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 462866322 + ... + 462866335.

It is an arithmetic number, because the mean of its divisors is an integer number (1851465316).

Almost surely, 2^6480128599 is an apocalyptic number.

6480128599 is a deficient number, since it is larger than the sum of its proper divisors (925732665).

6480128599 is an equidigital number, since it uses as much as digits as its factorization.

6480128599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925732664.

The product of its (nonzero) digits is 1244160, while the sum is 52.

The square root of 6480128599 is about 80499.2459529901. The cubic root of 6480128599 is about 1864.3518364226.

The spelling of 6480128599 in words is "six billion, four hundred eighty million, one hundred twenty-eight thousand, five hundred ninety-nine".