268519455 has 80 divisors (see below), whose sum is σ = 501044544. Its totient is φ = 137479680.

The previous prime is 268519453. The next prime is 268519463. The reversal of 268519455 is 554915862.

It is not a de Polignac number, because 268519455 - 2¹ = 268519453 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 268519455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268519453) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1710237 + ... + 1710393.

Almost surely, 2^268519455 is an apocalyptic number.

268519455 is a deficient number, since it is larger than the sum of its proper divisors (232525089).

268519455 is a wasteful number, since it uses less digits than its factorization.

268519455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318 (or 309 counting only the distinct ones).

The product of its digits is 432000, while the sum is 45.

The square root of 268519455 is about 16386.5632455375. The cubic root of 268519455 is about 645.1468567713.

The spelling of 268519455 in words is "two hundred sixty-eight million, five hundred nineteen thousand, four hundred fifty-five".