648124336 has 20 divisors (see below), whose sum is σ = 1260186952. Its totient is φ = 322914816.

The previous prime is 648124289. The next prime is 648124357. The reversal of 648124336 is 633421846.

It is a junction number, because it is equal to n+sod(n) for n = 648124295 and 648124304.

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, 67041 + ... + 76096.

Almost surely, 2^648124336 is an apocalyptic number.

It is an amenable number.

648124336 is a deficient number, since it is larger than the sum of its proper divisors (612062616).

648124336 is a wasteful number, since it uses less digits than its factorization.

648124336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143428 (or 143422 counting only the distinct ones).

The product of its digits is 82944, while the sum is 37.

The square root of 648124336 is about 25458.2861952646. The cubic root of 648124336 is about 865.4050854173.

The spelling of 648124336 in words is "six hundred forty-eight million, one hundred twenty-four thousand, three hundred thirty-six".