2068149473 has 4 divisors (see below), whose sum is σ = 2227237908. Its totient is φ = 1909061040.

The previous prime is 2068149439. The next prime is 2068149481. The reversal of 2068149473 is 3749418602.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3749418602 = 2 ⋅1874709301.

It can be written as a sum of positive squares in 2 ways, for example, as 105925264 + 1962224209 = 10292^2 + 44297^2 .

It is a cyclic number.

It is not a de Polignac number, because 2068149473 - 2⁶ = 2068149409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2068149403) 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 3 ways as a sum of consecutive naturals, for example, 79544198 + ... + 79544223.

It is an arithmetic number, because the mean of its divisors is an integer number (556809477).

Almost surely, 2^2068149473 is an apocalyptic number.

It is an amenable number.

2068149473 is a deficient number, since it is larger than the sum of its proper divisors (159088435).

2068149473 is a wasteful number, since it uses less digits than its factorization.

2068149473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159088434.

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 2068149473 is about 45476.9114276684. The cubic root of 2068149473 is about 1274.0720091935.

The spelling of 2068149473 in words is "two billion, sixty-eight million, one hundred forty-nine thousand, four hundred seventy-three".