648241835953 has 8 divisors (see below), whose sum is σ = 670609477800. Its totient is φ = 625875159168.

The previous prime is 648241835939. The next prime is 648241835959. The reversal of 648241835953 is 359538142846.

It can be written as a sum of positive squares in 4 ways, for example, as 614444944 + 647627391009 = 24788^2 + 804753^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-648241835953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (648241835959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1290183 + ... + 1720771.

It is an arithmetic number, because the mean of its divisors is an integer number (83826184725).

Almost surely, 2^648241835953 is an apocalyptic number.

It is an amenable number.

648241835953 is a deficient number, since it is larger than the sum of its proper divisors (22367641847).

648241835953 is a wasteful number, since it uses less digits than its factorization.

648241835953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482531.

The product of its digits is 24883200, while the sum is 58.

The spelling of 648241835953 in words is "six hundred forty-eight billion, two hundred forty-one million, eight hundred thirty-five thousand, nine hundred fifty-three".