2068687559 has 16 divisors (see below), whose sum is σ = 2159308800. Its totient is φ = 1980214656.

The previous prime is 2068687549. The next prime is 2068687561. The reversal of 2068687559 is 9557868602.

2068687559 = T₄₇₄₆ + T₄₇₄₇ + ... + T₄₉₂₂.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2068687559 is a prime.

It is a super-2 number, since 2×2068687559² = 8558936433522756962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2068687549) 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 15 ways as a sum of consecutive naturals, for example, 970607 + ... + 972735.

It is an arithmetic number, because the mean of its divisors is an integer number (134956800).

Almost surely, 2^2068687559 is an apocalyptic number.

2068687559 is a deficient number, since it is larger than the sum of its proper divisors (90621241).

2068687559 is a wasteful number, since it uses less digits than its factorization.

2068687559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2614.

The product of its (nonzero) digits is 7257600, while the sum is 56.

The square root of 2068687559 is about 45482.8270779203. The cubic root of 2068687559 is about 1274.1824945772.

The spelling of 2068687559 in words is "two billion, sixty-eight million, six hundred eighty-seven thousand, five hundred fifty-nine".