648649232211 has 16 divisors (see below), whose sum is σ = 892797820928. Its totient is φ = 418467772800.

The previous prime is 648649232207. The next prime is 648649232261. The reversal of 648649232211 is 112232946846.

It is not a de Polignac number, because 648649232211 - 2² = 648649232207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (648649232201) by changing a digit.

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, 2709291 + ... + 2938971.

It is an arithmetic number, because the mean of its divisors is an integer number (55799863808).

Almost surely, 2^648649232211 is an apocalyptic number.

648649232211 is a deficient number, since it is larger than the sum of its proper divisors (244148588717).

648649232211 is a wasteful number, since it uses less digits than its factorization.

648649232211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260082.

The product of its digits is 995328, while the sum is 48.

The spelling of 648649232211 in words is "six hundred forty-eight billion, six hundred forty-nine million, two hundred thirty-two thousand, two hundred eleven".