268011819 has 12 divisors (see below), whose sum is σ = 396131736. Its totient is φ = 174519072.

The previous prime is 268011803. The next prime is 268011827. The reversal of 268011819 is 918110862.

It is not a de Polignac number, because 268011819 - 2⁴ = 268011803 is a prime.

It is a super-2 number, since 2×268011819² = 143660670247377522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (268011829) 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, 345882 + ... + 346655.

It is an arithmetic number, because the mean of its divisors is an integer number (33010978).

Almost surely, 2^268011819 is an apocalyptic number.

268011819 is a deficient number, since it is larger than the sum of its proper divisors (128119917).

268011819 is a wasteful number, since it uses less digits than its factorization.

268011819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692586 (or 692583 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 36.

The square root of 268011819 is about 16371.0665199308. The cubic root of 268011819 is about 644.7400502872.

The spelling of 268011819 in words is "two hundred sixty-eight million, eleven thousand, eight hundred nineteen".