268481517 has 16 divisors (see below), whose sum is σ = 369741888. Its totient is φ = 173197440.

The previous prime is 268481513. The next prime is 268481539. The reversal of 268481517 is 715184862.

It is not a de Polignac number, because 268481517 - 2² = 268481513 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268481513) 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, 42 + ... + 23172.

It is an arithmetic number, because the mean of its divisors is an integer number (23108868).

Almost surely, 2^268481517 is an apocalyptic number.

It is an amenable number.

268481517 is a deficient number, since it is larger than the sum of its proper divisors (101260371).

268481517 is a wasteful number, since it uses less digits than its factorization.

268481517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23260.

The product of its digits is 107520, while the sum is 42.

The square root of 268481517 is about 16385.4056098712. The cubic root of 268481517 is about 645.1164719658.

The spelling of 268481517 in words is "two hundred sixty-eight million, four hundred eighty-one thousand, five hundred seventeen".