648757412 has 12 divisors (see below), whose sum is σ = 1184687616. Its totient is φ = 310275240.

The previous prime is 648757411. The next prime is 648757423. The reversal of 648757412 is 214757846.

It is not an unprimeable number, because it can be changed into a prime (648757411) 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, 3525764 + ... + 3525947.

It is an arithmetic number, because the mean of its divisors is an integer number (98723968).

Almost surely, 2^648757412 is an apocalyptic number.

It is an amenable number.

648757412 is a deficient number, since it is larger than the sum of its proper divisors (535930204).

648757412 is a wasteful number, since it uses less digits than its factorization.

648757412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7051738 (or 7051736 counting only the distinct ones).

The product of its digits is 376320, while the sum is 44.

The square root of 648757412 is about 25470.7167547362. The cubic root of 648757412 is about 865.6867643452.

The spelling of 648757412 in words is "six hundred forty-eight million, seven hundred fifty-seven thousand, four hundred twelve".