1680711711 has 24 divisors (see below), whose sum is σ = 2649567024. Its totient is φ = 944657280.

The previous prime is 1680711679. The next prime is 1680711713. The reversal of 1680711711 is 1171170861.

It is a happy number.

It is not a de Polignac number, because 1680711711 - 2⁵ = 1680711679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1680711713) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84750 + ... + 102683.

It is an arithmetic number, because the mean of its divisors is an integer number (110398626).

Almost surely, 2^1680711711 is an apocalyptic number.

1680711711 is a deficient number, since it is larger than the sum of its proper divisors (968855313).

1680711711 is a wasteful number, since it uses less digits than its factorization.

1680711711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187511 (or 187504 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 33.

The square root of 1680711711 is about 40996.4841297397. The cubic root of 1680711711 is about 1188.9522380684.

The spelling of 1680711711 in words is "one billion, six hundred eighty million, seven hundred eleven thousand, seven hundred eleven".