648568495 has 8 divisors (see below), whose sum is σ = 778448880. Its totient is φ = 518743680.

The previous prime is 648568489. The next prime is 648568511. The reversal of 648568495 is 594865846.

648568495 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 648568495 - 2¹⁹ = 648044207 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18775 + ... + 40615.

It is an arithmetic number, because the mean of its divisors is an integer number (97306110).

Almost surely, 2^648568495 is an apocalyptic number.

648568495 is a deficient number, since it is larger than the sum of its proper divisors (129880385).

648568495 is a wasteful number, since it uses less digits than its factorization.

648568495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27785.

The product of its digits is 8294400, while the sum is 55.

The square root of 648568495 is about 25467.0079710986. The cubic root of 648568495 is about 865.6027273742.

The spelling of 648568495 in words is "six hundred forty-eight million, five hundred sixty-eight thousand, four hundred ninety-five".