6488888420 has 96 divisors (see below), whose sum is σ = 15987476736. Its totient is φ = 2166336000.

The previous prime is 6488888347. The next prime is 6488888437. The reversal of 6488888420 is 248888846.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 858779 + ... + 866301.

It is an arithmetic number, because the mean of its divisors is an integer number (166536216).

Almost surely, 2^6488888420 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 6488888420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7993738368).

6488888420 is an abundant number, since it is smaller than the sum of its proper divisors (9498588316).

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

6488888420 is a wasteful number, since it uses less digits than its factorization.

6488888420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7701 (or 7699 counting only the distinct ones).

The product of its (nonzero) digits is 6291456, while the sum is 56.

The square root of 6488888420 is about 80553.6369135497. The cubic root of 6488888420 is about 1865.1915334919.

The spelling of 6488888420 in words is "six billion, four hundred eighty-eight million, eight hundred eighty-eight thousand, four hundred twenty".