648072912 has 40 divisors (see below), whose sum is σ = 1772672256. Its totient is φ = 203316736.

The previous prime is 648072857. The next prime is 648072913. The reversal of 648072912 is 219270846.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648072913) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 396288 + ... + 397919.

Almost surely, 2^648072912 is an apocalyptic number.

It is an amenable number.

648072912 is an abundant number, since it is smaller than the sum of its proper divisors (1124599344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

648072912 is a wasteful number, since it uses less digits than its factorization.

648072912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794235 (or 794229 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 648072912 is about 25457.2762093669. The cubic root of 648072912 is about 865.3821969242.

The spelling of 648072912 in words is "six hundred forty-eight million, seventy-two thousand, nine hundred twelve".