650780223678 has 96 divisors (see below), whose sum is σ = 1562531548032. Its totient is φ = 194452876800.

The previous prime is 650780223673. The next prime is 650780223749. The reversal of 650780223678 is 876322087056.

650780223678 is a `hidden beast` number, since 6 + 507 + 80 + 22 + 36 + 7 + 8 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650780223673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4438683 + ... + 4582953.

It is an arithmetic number, because the mean of its divisors is an integer number (16276370292).

Almost surely, 2^650780223678 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 650780223678, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (781265774016).

650780223678 is an abundant number, since it is smaller than the sum of its proper divisors (911751324354).

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

650780223678 is a wasteful number, since it uses less digits than its factorization.

650780223678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144850 (or 144847 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 54.

The spelling of 650780223678 in words is "six hundred fifty billion, seven hundred eighty million, two hundred twenty-three thousand, six hundred seventy-eight".