2068891271 has 4 divisors (see below), whose sum is σ = 2069383344. Its totient is φ = 2068399200.

The previous prime is 2068891259. The next prime is 2068891277. The reversal of 2068891271 is 1721988602.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2068891271 - 2¹⁸ = 2068629127 is a prime.

It is a super-2 number, since 2×2068891271² = 8560622182439990882, 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 (2068891277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239675 + ... + 248156.

It is an arithmetic number, because the mean of its divisors is an integer number (517345836).

Almost surely, 2^2068891271 is an apocalyptic number.

2068891271 is a deficient number, since it is larger than the sum of its proper divisors (492073).

2068891271 is an equidigital number, since it uses as much as digits as its factorization.

2068891271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492072.

The product of its (nonzero) digits is 96768, while the sum is 44.

The square root of 2068891271 is about 45485.0664614223. The cubic root of 2068891271 is about 1274.2243178326.

The spelling of 2068891271 in words is "two billion, sixty-eight million, eight hundred ninety-one thousand, two hundred seventy-one".