648228811346 has 8 divisors (see below), whose sum is σ = 972534751500. Its totient is φ = 324050560848.

The previous prime is 648228811309. The next prime is 648228811361. The reversal of 648228811346 is 643118822846.

It can be written as a sum of positive squares in 2 ways, for example, as 400910580625 + 247318230721 = 633175^2 + 497311^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31909721 + ... + 31930028.

Almost surely, 2^648228811346 is an apocalyptic number.

648228811346 is a deficient number, since it is larger than the sum of its proper divisors (324305940154).

648228811346 is a wasteful number, since it uses less digits than its factorization.

648228811346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63844828.

The product of its digits is 3538944, while the sum is 53.

The spelling of 648228811346 in words is "six hundred forty-eight billion, two hundred twenty-eight million, eight hundred eleven thousand, three hundred forty-six".