6488431840 has 48 divisors (see below), whose sum is σ = 16722462960. Its totient is φ = 2359429120.

The previous prime is 6488431801. The next prime is 6488431877. The reversal of 6488431840 is 481348846.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1841545 + ... + 1845064.

It is an arithmetic number, because the mean of its divisors is an integer number (348384645).

Almost surely, 2^6488431840 is an apocalyptic number.

It is an amenable number.

6488431840 is an abundant number, since it is smaller than the sum of its proper divisors (10234031120).

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

6488431840 is a wasteful number, since it uses less digits than its factorization.

6488431840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3686635 (or 3686627 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 46.

The square root of 6488431840 is about 80550.8028513683. The cubic root of 6488431840 is about 1865.1477854173.

The spelling of 6488431840 in words is "six billion, four hundred eighty-eight million, four hundred thirty-one thousand, eight hundred forty".