2068861187 has 2 divisors, whose sum is σ = 2068861188. Its totient is φ = 2068861186.

The previous prime is 2068861169. The next prime is 2068861211. The reversal of 2068861187 is 7811688602.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2068861187 - 2⁸ = 2068860931 is a prime.

It is a super-2 number, since 2×2068861187² = 8560373222150097938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2068861147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1034430593 + 1034430594.

It is an arithmetic number, because the mean of its divisors is an integer number (1034430594).

Almost surely, 2^2068861187 is an apocalyptic number.

2068861187 is a deficient number, since it is larger than the sum of its proper divisors (1).

2068861187 is an equidigital number, since it uses as much as digits as its factorization.

2068861187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 258048, while the sum is 47.

The square root of 2068861187 is about 45484.7357582739. The cubic root of 2068861187 is about 1274.2181415857.

The spelling of 2068861187 in words is "two billion, sixty-eight million, eight hundred sixty-one thousand, one hundred eighty-seven".