268780611 has 16 divisors (see below), whose sum is σ = 391386240. Its totient is φ = 162717120.

The previous prime is 268780609. The next prime is 268780619. The reversal of 268780611 is 116087862.

It is not a de Polignac number, because 268780611 - 2¹ = 268780609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 268780611.

It is not an unprimeable number, because it can be changed into a prime (268780619) 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, 29631 + ... + 37623.

It is an arithmetic number, because the mean of its divisors is an integer number (24461640).

Almost surely, 2^268780611 is an apocalyptic number.

268780611 is a deficient number, since it is larger than the sum of its proper divisors (122605629).

268780611 is a wasteful number, since it uses less digits than its factorization.

268780611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9026.

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 268780611 is about 16394.5299109185. The cubic root of 268780611 is about 645.3559407907.

The spelling of 268780611 in words is "two hundred sixty-eight million, seven hundred eighty thousand, six hundred eleven".