648458687252 has 12 divisors (see below), whose sum is σ = 1173933830580. Its totient is φ = 313049021376.

The previous prime is 648458687243. The next prime is 648458687257. The reversal of 648458687252 is 252786854846.

648458687252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 101045151376 + 547413535876 = 317876^2 + 739874^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648458687257) 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, 2795080433 + ... + 2795080664.

It is an arithmetic number, because the mean of its divisors is an integer number (97827819215).

Almost surely, 2^648458687252 is an apocalyptic number.

It is an amenable number.

648458687252 is a deficient number, since it is larger than the sum of its proper divisors (525475143328).

648458687252 is a wasteful number, since it uses less digits than its factorization.

648458687252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5590161130 (or 5590161128 counting only the distinct ones).

The product of its digits is 206438400, while the sum is 65.

The spelling of 648458687252 in words is "six hundred forty-eight billion, four hundred fifty-eight million, six hundred eighty-seven thousand, two hundred fifty-two".