648369650932708 has 24 divisors (see below), whose sum is σ = 1181375649478584. Its totient is φ = 311092995244800.

The previous prime is 648369650932693. The next prime is 648369650932733. The reversal of 648369650932708 is 807239056963846.

It can be written as a sum of positive squares in 4 ways, for example, as 194467989451684 + 453901661481024 = 13945178^2 + 21304968^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32405510335 + ... + 32405530342.

It is an arithmetic number, because the mean of its divisors is an integer number (49223985394941).

Almost surely, 2^{648369650932708} is an apocalyptic number.

It is an amenable number.

648369650932708 is a deficient number, since it is larger than the sum of its proper divisors (533005998545876).

648369650932708 is a wasteful number, since it uses less digits than its factorization.

648369650932708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64811040783 (or 64811040781 counting only the distinct ones).

The product of its (nonzero) digits is 2821754880, while the sum is 76.

The spelling of 648369650932708 in words is "six hundred forty-eight trillion, three hundred sixty-nine billion, six hundred fifty million, nine hundred thirty-two thousand, seven hundred eight".