2068515919 has 12 divisors (see below), whose sum is σ = 2238184224. Its totient is φ = 1904232192.

The previous prime is 2068515881. The next prime is 2068515947. The reversal of 2068515919 is 9195158602.

It is not a de Polignac number, because 2068515919 - 2¹¹ = 2068513871 is a prime.

It is a super-2 number, since 2×2068515919² = 8557516214312829122, 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 (2068515949) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1284787 + ... + 1286395.

It is an arithmetic number, because the mean of its divisors is an integer number (186515352).

Almost surely, 2^2068515919 is an apocalyptic number.

2068515919 is a deficient number, since it is larger than the sum of its proper divisors (169668305).

2068515919 is an frugal number, since it uses more digits than its factorization.

2068515919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3282 (or 1673 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 46.

The square root of 2068515919 is about 45480.9401727801. The cubic root of 2068515919 is about 1274.1472537581.

The spelling of 2068515919 in words is "two billion, sixty-eight million, five hundred fifteen thousand, nine hundred nineteen".