648773852 has 24 divisors (see below), whose sum is σ = 1164240000. Its totient is φ = 316166256.

The previous prime is 648773837. The next prime is 648773891. The reversal of 648773852 is 258377846.

It is a super-2 number, since 2×648773852² = 841815022077835808, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 648773852.

It is a congruent number.

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, 82049 + ... + 89607.

It is an arithmetic number, because the mean of its divisors is an integer number (48510000).

Almost surely, 2^648773852 is an apocalyptic number.

It is an amenable number.

648773852 is a deficient number, since it is larger than the sum of its proper divisors (515466148).

648773852 is a wasteful number, since it uses less digits than its factorization.

648773852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8105 (or 8103 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 50.

The square root of 648773852 is about 25471.0394762365. The cubic root of 648773852 is about 865.6940766677.

The spelling of 648773852 in words is "six hundred forty-eight million, seven hundred seventy-three thousand, eight hundred fifty-two".