648744450206 has 8 divisors (see below), whose sum is σ = 973125024984. Its totient is φ = 324369441880.

The previous prime is 648744450197. The next prime is 648744450229. The reversal of 648744450206 is 602054447846.

648744450206 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1086905 + ... + 1574436.

It is an arithmetic number, because the mean of its divisors is an integer number (121640628123).

Almost surely, 2^648744450206 is an apocalyptic number.

648744450206 is a deficient number, since it is larger than the sum of its proper divisors (324380574778).

648744450206 is a wasteful number, since it uses less digits than its factorization.

648744450206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2783226.

The product of its (nonzero) digits is 5160960, while the sum is 50.

The spelling of 648744450206 in words is "six hundred forty-eight billion, seven hundred forty-four million, four hundred fifty thousand, two hundred six".