1680765548 has 48 divisors (see below), whose sum is σ = 3671426304. Its totient is φ = 654075840.

The previous prime is 1680765511. The next prime is 1680765587. The reversal of 1680765548 is 8455670861.

It is a junction number, because it is equal to n+sod(n) for n = 1680765496 and 1680765505.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309311 + ... + 314697.

It is an arithmetic number, because the mean of its divisors is an integer number (76488048).

Almost surely, 2^1680765548 is an apocalyptic number.

It is an amenable number.

1680765548 is an abundant number, since it is smaller than the sum of its proper divisors (1990660756).

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

1680765548 is a wasteful number, since it uses less digits than its factorization.

1680765548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6422 (or 6420 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 50.

The square root of 1680765548 is about 40997.1407295680. The cubic root of 1680765548 is about 1188.9649328766.

The spelling of 1680765548 in words is "one billion, six hundred eighty million, seven hundred sixty-five thousand, five hundred forty-eight".