5691666850 has 12 divisors (see below), whose sum is σ = 10586500434. Its totient is φ = 2276666720.

The previous prime is 5691666839. The next prime is 5691666853. The reversal of 5691666850 is 586661965.

It can be written as a sum of positive squares in 3 ways, for example, as 5566204449 + 125462401 = 74607^2 + 11201^2 .

It is not an unprimeable number, because it can be changed into a prime (5691666853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56916619 + ... + 56916718.

Almost surely, 2^5691666850 is an apocalyptic number.

5691666850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

5691666850 is a deficient number, since it is larger than the sum of its proper divisors (4894833584).

5691666850 is a wasteful number, since it uses less digits than its factorization.

5691666850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113833349 (or 113833344 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 52.

The square root of 5691666850 is about 75443.1365334183. The cubic root of 5691666850 is about 1785.4450579408.

The spelling of 5691666850 in words is "five billion, six hundred ninety-one million, six hundred sixty-six thousand, eight hundred fifty".