648706382273 has 4 divisors (see below), whose sum is σ = 648711227568. Its totient is φ = 648701536980.

The previous prime is 648706382257. The next prime is 648706382293. The reversal of 648706382273 is 372283607846.

648706382273 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 648706382273 - 2⁴ = 648706382257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (648706382213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2215943 + ... + 2491548.

It is an arithmetic number, because the mean of its divisors is an integer number (162177806892).

Almost surely, 2^648706382273 is an apocalyptic number.

It is an amenable number.

648706382273 is a deficient number, since it is larger than the sum of its proper divisors (4845295).

648706382273 is a wasteful number, since it uses less digits than its factorization.

648706382273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4845294.

The product of its (nonzero) digits is 16257024, while the sum is 56.

The spelling of 648706382273 in words is "six hundred forty-eight billion, seven hundred six million, three hundred eighty-two thousand, two hundred seventy-three".