6488669520 has 120 divisors (see below), whose sum is σ = 22494131712. Its totient is φ = 1674489600.

The previous prime is 6488669519. The next prime is 6488669527. The reversal of 6488669520 is 259668846.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6488669527) 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 23 ways as a sum of consecutive naturals, for example, 123036 + ... + 167675.

Almost surely, 2^6488669520 is an apocalyptic number.

6488669520 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6488669520 is an abundant number, since it is smaller than the sum of its proper divisors (16005462192).

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

6488669520 is a wasteful number, since it uses less digits than its factorization.

6488669520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290761 (or 290752 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The square root of 6488669520 is about 80552.2781800738. The cubic root of 6488669520 is about 1865.1705594313.

The spelling of 6488669520 in words is "six billion, four hundred eighty-eight million, six hundred sixty-nine thousand, five hundred twenty".