1648085803 has 12 divisors (see below), whose sum is σ = 2039559888. Its totient is φ = 1303979040.

The previous prime is 1648085779. The next prime is 1648085807. The reversal of 1648085803 is 3085808461.

It is not a de Polignac number, because 1648085803 - 2²⁹ = 1111214891 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1648085803.

It is not an unprimeable number, because it can be changed into a prime (1648085807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 695388 + ... + 697753.

It is an arithmetic number, because the mean of its divisors is an integer number (169963324).

Almost surely, 2^1648085803 is an apocalyptic number.

1648085803 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1648085803 is a deficient number, since it is larger than the sum of its proper divisors (391474085).

1648085803 is a wasteful number, since it uses less digits than its factorization.

1648085803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393174 (or 1393161 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 43.

The square root of 1648085803 is about 40596.6230492143. The cubic root of 1648085803 is about 1181.2086158602.

The spelling of 1648085803 in words is "one billion, six hundred forty-eight million, eighty-five thousand, eight hundred three".