648366888 has 64 divisors (see below), whose sum is σ = 1770249600. Its totient is φ = 196680960.

The previous prime is 648366883. The next prime is 648366889. The reversal of 648366888 is 888663846.

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

It is not an unprimeable number, because it can be changed into a prime (648366883) 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 15 ways as a sum of consecutive naturals, for example, 7518 + ... + 36786.

It is an arithmetic number, because the mean of its divisors is an integer number (27660150).

Almost surely, 2^648366888 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 648366888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (885124800).

648366888 is an abundant number, since it is smaller than the sum of its proper divisors (1121882712).

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

648366888 is a wasteful number, since it uses less digits than its factorization.

648366888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29362 (or 29358 counting only the distinct ones).

The product of its digits is 10616832, while the sum is 57.

The square root of 648366888 is about 25463.0494638800. The cubic root of 648366888 is about 865.5130274398.

The spelling of 648366888 in words is "six hundred forty-eight million, three hundred sixty-six thousand, eight hundred eighty-eight".