648773733 has 16 divisors (see below), whose sum is σ = 884511936. Its totient is φ = 422883840.

The previous prime is 648773731. The next prime is 648773747. The reversal of 648773733 is 337377846.

It is not a de Polignac number, because 648773733 - 2¹ = 648773731 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648773731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10723 + ... + 37583.

It is an arithmetic number, because the mean of its divisors is an integer number (55281996).

Almost surely, 2^648773733 is an apocalyptic number.

It is an amenable number.

648773733 is a deficient number, since it is larger than the sum of its proper divisors (235738203).

648773733 is a wasteful number, since it uses less digits than its factorization.

648773733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27044.

The product of its digits is 1778112, while the sum is 48.

The square root of 648773733 is about 25471.0371402501. The cubic root of 648773733 is about 865.6940237383.

The spelling of 648773733 in words is "six hundred forty-eight million, seven hundred seventy-three thousand, seven hundred thirty-three".