275816868 has 48 divisors (see below), whose sum is σ = 668123904. Its totient is φ = 88496640.

The previous prime is 275816867. The next prime is 275816873. The reversal of 275816868 is 868618572.

It is a self number, because there is not a number n which added to its sum of digits gives 275816868.

It is not an unprimeable number, because it can be changed into a prime (275816861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30396 + ... + 38412.

It is an arithmetic number, because the mean of its divisors is an integer number (13919248).

Almost surely, 2^275816868 is an apocalyptic number.

It is an amenable number.

275816868 is an abundant number, since it is smaller than the sum of its proper divisors (392307036).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

275816868 is a wasteful number, since it uses less digits than its factorization.

275816868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8132 (or 8130 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 51.

The square root of 275816868 is about 16607.7351857500. The cubic root of 275816868 is about 650.9389727149.

The spelling of 275816868 in words is "two hundred seventy-five million, eight hundred sixteen thousand, eight hundred sixty-eight".