6480609520 has 160 divisors (see below), whose sum is σ = 19391901696. Its totient is φ = 1954713600.

The previous prime is 6480609469. The next prime is 6480609571. The reversal of 6480609520 is 259060846.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6480609469) and next prime (6480609571).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 173992 + ... + 207928.

Almost surely, 2^6480609520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6480609520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9695950848).

6480609520 is an abundant number, since it is smaller than the sum of its proper divisors (12911292176).

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

6480609520 is a wasteful number, since it uses less digits than its factorization.

6480609520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33999 (or 33993 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 6480609520 is about 80502.2330125072. The cubic root of 6480609520 is about 1864.3979560716.

The spelling of 6480609520 in words is "six billion, four hundred eighty million, six hundred nine thousand, five hundred twenty".