268144379 has 2 divisors, whose sum is σ = 268144380. Its totient is φ = 268144378.

The previous prime is 268144369. The next prime is 268144381. The reversal of 268144379 is 973441862.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 268144379 - 2⁴ = 268144363 is a prime.

Together with 268144381, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (268144309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134072189 + 134072190.

It is an arithmetic number, because the mean of its divisors is an integer number (134072190).

Almost surely, 2^268144379 is an apocalyptic number.

268144379 is a deficient number, since it is larger than the sum of its proper divisors (1).

268144379 is an equidigital number, since it uses as much as digits as its factorization.

268144379 is an evil number, because the sum of its binary digits is even.

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

The square root of 268144379 is about 16375.1146255530. The cubic root of 268144379 is about 644.8463299959.

The spelling of 268144379 in words is "two hundred sixty-eight million, one hundred forty-four thousand, three hundred seventy-nine".