1688516883 has 6 divisors (see below), whose sum is σ = 2438968844. Its totient is φ = 1125677916.

The previous prime is 1688516861. The next prime is 1688516887. The reversal of 1688516883 is 3886158861.

It is not a de Polignac number, because 1688516883 - 2⁹ = 1688516371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1688516887) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 93806485 + ... + 93806502.

Almost surely, 2^1688516883 is an apocalyptic number.

1688516883 is a deficient number, since it is larger than the sum of its proper divisors (750451961).

1688516883 is a wasteful number, since it uses less digits than its factorization.

1688516883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187612993 (or 187612990 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 54.

The square root of 1688516883 is about 41091.5670545673. The cubic root of 1688516883 is about 1190.7898818672.

The spelling of 1688516883 in words is "one billion, six hundred eighty-eight million, five hundred sixteen thousand, eight hundred eighty-three".