1648986756 has 24 divisors (see below), whose sum is σ = 3849935040. Its totient is φ = 549333792.

The previous prime is 1648986673. The next prime is 1648986761. The reversal of 1648986756 is 6576898461.

It is a self number, because there is not a number n which added to its sum of digits gives 1648986756.

It is an unprimeable number.

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, 19696 + ... + 60711.

It is an arithmetic number, because the mean of its divisors is an integer number (160413960).

Almost surely, 2^1648986756 is an apocalyptic number.

It is an amenable number.

1648986756 is an abundant number, since it is smaller than the sum of its proper divisors (2200948284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1648986756 is a wasteful number, since it uses less digits than its factorization.

1648986756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82123 (or 82121 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 60.

The square root of 1648986756 is about 40607.7179363726. The cubic root of 1648986756 is about 1181.4238189724.

The spelling of 1648986756 in words is "one billion, six hundred forty-eight million, nine hundred eighty-six thousand, seven hundred fifty-six".