648075532849 has 16 divisors (see below), whose sum is σ = 695881454400. Its totient is φ = 601732321344.

The previous prime is 648075532829. The next prime is 648075532883. The reversal of 648075532849 is 948235570846.

It is not a de Polignac number, because 648075532849 - 2¹¹ = 648075530801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (648075532829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1041334 + ... + 1542895.

It is an arithmetic number, because the mean of its divisors is an integer number (43492590900).

Almost surely, 2^648075532849 is an apocalyptic number.

It is an amenable number.

648075532849 is a deficient number, since it is larger than the sum of its proper divisors (47805921551).

648075532849 is a wasteful number, since it uses less digits than its factorization.

648075532849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2584512.

The product of its (nonzero) digits is 58060800, while the sum is 61.

The spelling of 648075532849 in words is "six hundred forty-eight billion, seventy-five million, five hundred thirty-two thousand, eight hundred forty-nine".