650786880 has 112 divisors (see below), whose sum is σ = 2081540160. Its totient is φ = 172259328.

The previous prime is 650786869. The next prime is 650786881. The reversal of 650786880 is 88687056.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (650786881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131002 + ... + 135878.

It is an arithmetic number, because the mean of its divisors is an integer number (18585180).

Almost surely, 2^650786880 is an apocalyptic number.

650786880 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 650786880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1040770080).

650786880 is an abundant number, since it is smaller than the sum of its proper divisors (1430753280).

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

650786880 is a wasteful number, since it uses less digits than its factorization.

650786880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5036 (or 5026 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 48.

The square root of 650786880 is about 25510.5248867992. The cubic root of 650786880 is about 866.5885162930.

The spelling of 650786880 in words is "six hundred fifty million, seven hundred eighty-six thousand, eight hundred eighty".