11356768394 has 4 divisors (see below), whose sum is σ = 17035152594. Its totient is φ = 5678384196.

The previous prime is 11356768393. The next prime is 11356768429. The reversal of 11356768394 is 49386765311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49386765311 = 13 ⋅3798981947.

It can be written as a sum of positive squares in only one way, i.e., 6853687369 + 4503081025 = 82787^2 + 67105^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11356768393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2839192097 + ... + 2839192100.

Almost surely, 2^11356768394 is an apocalyptic number.

11356768394 is a deficient number, since it is larger than the sum of its proper divisors (5678384200).

11356768394 is an equidigital number, since it uses as much as digits as its factorization.

11356768394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5678384199.

The product of its digits is 3265920, while the sum is 53.

The spelling of 11356768394 in words is "eleven billion, three hundred fifty-six million, seven hundred sixty-eight thousand, three hundred ninety-four".