1648543009936 has 45 divisors (see below), whose sum is σ = 3274274105323. Its totient is φ = 804064605440.

The previous prime is 1648543009933. The next prime is 1648543009957. The reversal of 1648543009936 is 6399003458461.

The square root of 1648543009936 is 1283956.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1136688616336 + 511854393600 = 1066156^2 + 715440^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1648543009933) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 210564870 + ... + 210572698.

Almost surely, 2^{1648543009936} is an apocalyptic number.

1648543009936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1648543009936 is the 1283956-th square number.

It is an amenable number.

1648543009936 is a deficient number, since it is larger than the sum of its proper divisors (1625731095387).

1648543009936 is an frugal number, since it uses more digits than its factorization.

1648543009936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15748 (or 7872 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 58.

The spelling of 1648543009936 in words is "one trillion, six hundred forty-eight billion, five hundred forty-three million, nine thousand, nine hundred thirty-six".