648850804255 has 16 divisors (see below), whose sum is σ = 803788038144. Its totient is φ = 502304689440.

The previous prime is 648850804229. The next prime is 648850804309. The reversal of 648850804255 is 552408058846.

It is not a de Polignac number, because 648850804255 - 2⁷ = 648850804127 is a prime.

It is a super-2 number, since 2×648850804255² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 648850804196 and 648850804205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2529234 + ... + 2773936.

It is an arithmetic number, because the mean of its divisors is an integer number (50236752384).

Almost surely, 2^648850804255 is an apocalyptic number.

648850804255 is a deficient number, since it is larger than the sum of its proper divisors (154937233889).

648850804255 is a wasteful number, since it uses less digits than its factorization.

648850804255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261846.

The product of its (nonzero) digits is 12288000, while the sum is 55.

The spelling of 648850804255 in words is "six hundred forty-eight billion, eight hundred fifty million, eight hundred four thousand, two hundred fifty-five".