648128890017 has 96 divisors (see below), whose sum is σ = 1135206425600. Its totient is φ = 348081100416.

The previous prime is 648128889997. The next prime is 648128890033. The reversal of 648128890017 is 710098821846.

648128890017 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 648128890017 - 2⁶ = 648128889953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (648128891017) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 119600334 + ... + 119605752.

Almost surely, 2^648128890017 is an apocalyptic number.

It is an amenable number.

648128890017 is a deficient number, since it is larger than the sum of its proper divisors (487077535583).

648128890017 is a wasteful number, since it uses less digits than its factorization.

648128890017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6227 (or 6224 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 54.

The spelling of 648128890017 in words is "six hundred forty-eight billion, one hundred twenty-eight million, eight hundred ninety thousand, seventeen".