11338746778 has 4 divisors (see below), whose sum is σ = 17008120170. Its totient is φ = 5669373388.

The previous prime is 11338746767. The next prime is 11338746799. The reversal of 11338746778 is 87764783311.

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

It can be written as a sum of positive squares in only one way, i.e., 11293950529 + 44796249 = 106273^2 + 6693^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2834686693 + ... + 2834686696.

Almost surely, 2^11338746778 is an apocalyptic number.

11338746778 is a deficient number, since it is larger than the sum of its proper divisors (5669373392).

11338746778 is an equidigital number, since it uses as much as digits as its factorization.

11338746778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5669373391.

The product of its digits is 4741632, while the sum is 55.

The spelling of 11338746778 in words is "eleven billion, three hundred thirty-eight million, seven hundred forty-six thousand, seven hundred seventy-eight".