648848880 has 120 divisors (see below), whose sum is σ = 2259824112. Its totient is φ = 173021184.

The previous prime is 648848873. The next prime is 648848881. The reversal of 648848880 is 88848846.

648848880 is a `hidden beast` number, since 6 + 4 + 88 + 488 + 80 = 666.

648848880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648848881) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2752 + ... + 36128.

Almost surely, 2^648848880 is an apocalyptic number.

648848880 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 648848880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1129912056).

648848880 is an abundant number, since it is smaller than the sum of its proper divisors (1610975232).

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

648848880 is a wasteful number, since it uses less digits than its factorization.

648848880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33405 (or 33387 counting only the distinct ones).

The product of its (nonzero) digits is 3145728, while the sum is 54.

The square root of 648848880 is about 25472.5122435931. The cubic root of 648848880 is about 865.7274466889.

The spelling of 648848880 in words is "six hundred forty-eight million, eight hundred forty-eight thousand, eight hundred eighty".