1648368812 has 24 divisors (see below), whose sum is σ = 2948520960. Its totient is φ = 806130000.

The previous prime is 1648368781. The next prime is 1648368817. The reversal of 1648368812 is 2188638461.

It is not an unprimeable number, because it can be changed into a prime (1648368817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9437 + ... + 58187.

It is an arithmetic number, because the mean of its divisors is an integer number (122855040).

Almost surely, 2^1648368812 is an apocalyptic number.

It is an amenable number.

1648368812 is a deficient number, since it is larger than the sum of its proper divisors (1300152148).

1648368812 is a wasteful number, since it uses less digits than its factorization.

1648368812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48941 (or 48939 counting only the distinct ones).

The product of its digits is 442368, while the sum is 47.

The square root of 1648368812 is about 40600.1085220225. The cubic root of 1648368812 is about 1181.2762243014.

The spelling of 1648368812 in words is "one billion, six hundred forty-eight million, three hundred sixty-eight thousand, eight hundred twelve".