268911190133 has 4 divisors (see below), whose sum is σ = 268916025600. Its totient is φ = 268906354668.

The previous prime is 268911190129. The next prime is 268911190153. The reversal of 268911190133 is 331091119862.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 268911190133 - 2² = 268911190129 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268911190153) 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, 2333333 + ... + 2445866.

It is an arithmetic number, because the mean of its divisors is an integer number (67229006400).

Almost surely, 2^268911190133 is an apocalyptic number.

It is an amenable number.

268911190133 is a deficient number, since it is larger than the sum of its proper divisors (4835467).

268911190133 is an equidigital number, since it uses as much as digits as its factorization.

268911190133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4835466.

The product of its (nonzero) digits is 69984, while the sum is 44.

The spelling of 268911190133 in words is "two hundred sixty-eight billion, nine hundred eleven million, one hundred ninety thousand, one hundred thirty-three".