648895845268 has 24 divisors (see below), whose sum is σ = 1238942053440. Its totient is φ = 294919110720.

The previous prime is 648895845167. The next prime is 648895845319. The reversal of 648895845268 is 862548598846.

It is a self number, because there is not a number n which added to its sum of digits gives 648895845268.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 445321 + ... + 1223152.

It is an arithmetic number, because the mean of its divisors is an integer number (51622585560).

Almost surely, 2^648895845268 is an apocalyptic number.

It is an amenable number.

648895845268 is a deficient number, since it is larger than the sum of its proper divisors (590046208172).

648895845268 is a wasteful number, since it uses less digits than its factorization.

648895845268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1677327 (or 1677325 counting only the distinct ones).

The product of its digits is 1061683200, while the sum is 73.

The spelling of 648895845268 in words is "six hundred forty-eight billion, eight hundred ninety-five million, eight hundred forty-five thousand, two hundred sixty-eight".