648085240824 has 64 divisors (see below), whose sum is σ = 1851792787200. Its totient is φ = 185155144704.

The previous prime is 648085240799. The next prime is 648085240837. The reversal of 648085240824 is 428042580846.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2640567 + ... + 2875545.

It is an arithmetic number, because the mean of its divisors is an integer number (28934262300).

Almost surely, 2^648085240824 is an apocalyptic number.

It is an amenable number.

648085240824 is an abundant number, since it is smaller than the sum of its proper divisors (1203707546376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

648085240824 is a wasteful number, since it uses less digits than its factorization.

648085240824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251412 (or 251408 counting only the distinct ones).

The product of its (nonzero) digits is 3932160, while the sum is 51.

The spelling of 648085240824 in words is "six hundred forty-eight billion, eighty-five million, two hundred forty thousand, eight hundred twenty-four".