271968861 has 12 divisors (see below), whose sum is σ = 366292256. Its totient is φ = 179497200.

The previous prime is 271968857. The next prime is 271968863. The reversal of 271968861 is 168869172.

It is not a de Polignac number, because 271968861 - 2² = 271968857 is a prime.

It is a super-2 number, since 2×271968861² = 147934122707274642, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 271968861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (271968863) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26160 + ... + 35046.

Almost surely, 2^271968861 is an apocalyptic number.

It is an amenable number.

271968861 is a deficient number, since it is larger than the sum of its proper divisors (94323395).

271968861 is an equidigital number, since it uses as much as digits as its factorization.

271968861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9092 (or 8991 counting only the distinct ones).

The product of its digits is 290304, while the sum is 48.

The square root of 271968861 is about 16491.4784358468. The cubic root of 271968861 is about 647.8976342453.

The spelling of 271968861 in words is "two hundred seventy-one million, nine hundred sixty-eight thousand, eight hundred sixty-one".