648342848 has 14 divisors (see below), whose sum is σ = 1286555466. Its totient is φ = 324171392.

The previous prime is 648342743. The next prime is 648342901. The reversal of 648342848 is 848243846.

It can be written as a sum of positive squares in only one way, i.e., 575616064 + 72726784 = 23992^2 + 8528^2 .

It is a super-2 number, since 2×648342848² = 840696897105502208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5065115 + ... + 5065242.

It is an arithmetic number, because the mean of its divisors is an integer number (91896819).

Almost surely, 2^648342848 is an apocalyptic number.

It is an amenable number.

648342848 is a deficient number, since it is larger than the sum of its proper divisors (638212618).

648342848 is a wasteful number, since it uses less digits than its factorization.

648342848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10130369 (or 10130359 counting only the distinct ones).

The product of its digits is 1179648, while the sum is 47.

The square root of 648342848 is about 25462.5774029260. The cubic root of 648342848 is about 865.5023302092.

The spelling of 648342848 in words is "six hundred forty-eight million, three hundred forty-two thousand, eight hundred forty-eight".