648970012 has 12 divisors (see below), whose sum is σ = 1136081520. Its totient is φ = 324375296.

The previous prime is 648969991. The next prime is 648970013. The reversal of 648970012 is 210079846.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648970013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13312 + ... + 38407.

It is an arithmetic number, because the mean of its divisors is an integer number (94673460).

Almost surely, 2^648970012 is an apocalyptic number.

It is an amenable number.

648970012 is a deficient number, since it is larger than the sum of its proper divisors (487111508).

648970012 is a wasteful number, since it uses less digits than its factorization.

648970012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54860 (or 54858 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 648970012 is about 25474.8898329316. The cubic root of 648970012 is about 865.7813168453.

The spelling of 648970012 in words is "six hundred forty-eight million, nine hundred seventy thousand, twelve".