268778701 has 4 divisors (see below), whose sum is σ = 268849692. Its totient is φ = 268707712.

The previous prime is 268778677. The next prime is 268778729. The reversal of 268778701 is 107877862.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 99102025 + 169676676 = 9955^2 + 13026^2 .

It is a cyclic number.

It is not a de Polignac number, because 268778701 - 2¹⁵ = 268745933 is a prime.

It is a super-2 number, since 2×268778701² = 144483980222494802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268778791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29476 + ... + 37501.

It is an arithmetic number, because the mean of its divisors is an integer number (67212423).

Almost surely, 2^268778701 is an apocalyptic number.

It is an amenable number.

268778701 is a deficient number, since it is larger than the sum of its proper divisors (70991).

268778701 is an equidigital number, since it uses as much as digits as its factorization.

268778701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70990.

The product of its (nonzero) digits is 263424, while the sum is 46.

The square root of 268778701 is about 16394.4716596785. The cubic root of 268778701 is about 645.3544121179.

The spelling of 268778701 in words is "two hundred sixty-eight million, seven hundred seventy-eight thousand, seven hundred one".