1686075696 has 80 divisors (see below), whose sum is σ = 4845349600. Its totient is φ = 561364992.

The previous prime is 1686075667. The next prime is 1686075757. The reversal of 1686075696 is 6965706861.

1686075696 is a `hidden beast` number, since 16 + 8 + 60 + 7 + 569 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 486000 + ... + 489456.

It is an arithmetic number, because the mean of its divisors is an integer number (60566870).

Almost surely, 2^1686075696 is an apocalyptic number.

1686075696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1686075696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2422674800).

1686075696 is an abundant number, since it is smaller than the sum of its proper divisors (3159273904).

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

1686075696 is a wasteful number, since it uses less digits than its factorization.

1686075696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4603 (or 4591 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The square root of 1686075696 is about 41061.8520770800. The cubic root of 1686075696 is about 1190.2157403734.

The spelling of 1686075696 in words is "one billion, six hundred eighty-six million, seventy-five thousand, six hundred ninety-six".