1680871476 has 12 divisors (see below), whose sum is σ = 3922033472. Its totient is φ = 560290488.

The previous prime is 1680871471. The next prime is 1680871477. The reversal of 1680871476 is 6741780861.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1680871471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70036300 + ... + 70036323.

Almost surely, 2^1680871476 is an apocalyptic number.

It is an amenable number.

1680871476 is an abundant number, since it is smaller than the sum of its proper divisors (2241161996).

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

1680871476 is a wasteful number, since it uses less digits than its factorization.

1680871476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140072630 (or 140072628 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 48.

The square root of 1680871476 is about 40998.4326041862. The cubic root of 1680871476 is about 1188.9899099933.

The spelling of 1680871476 in words is "one billion, six hundred eighty million, eight hundred seventy-one thousand, four hundred seventy-six".