6428248128648 has 80 divisors (see below), whose sum is σ = 18071980591500. Its totient is φ = 2134783707264.

The previous prime is 6428248128623. The next prime is 6428248128689. The reversal of 6428248128648 is 8468218428246.

6428248128648 is a `hidden beast` number, since 6 + 428 + 2 + 48 + 128 + 6 + 48 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4979494064484 + 1448754064164 = 2231478^2 + 1203642^2 .

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 18264603 + ... + 18613226.

Almost surely, 2^{6428248128648} is an apocalyptic number.

It is an amenable number.

6428248128648 is an abundant number, since it is smaller than the sum of its proper divisors (11643732462852).

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

6428248128648 is a wasteful number, since it uses less digits than its factorization.

6428248128648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36878116 (or 36878103 counting only the distinct ones).

The product of its digits is 75497472, while the sum is 63.

The spelling of 6428248128648 in words is "six trillion, four hundred twenty-eight billion, two hundred forty-eight million, one hundred twenty-eight thousand, six hundred forty-eight".