648860000 has 60 divisors (see below), whose sum is σ = 1596342132. Its totient is φ = 259536000.

The previous prime is 648859987. The next prime is 648860027. The reversal of 648860000 is 68846.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 3779 + ... + 36221.

Almost surely, 2^648860000 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 648860000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (798171066).

648860000 is an abundant number, since it is smaller than the sum of its proper divisors (947482132).

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

648860000 is an equidigital number, since it uses as much as digits as its factorization.

648860000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32473 (or 32450 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 648860000 is about 25472.7305171629. The cubic root of 648860000 is about 865.7323922854.

The spelling of 648860000 in words is "six hundred forty-eight million, eight hundred sixty thousand".