11381779078 has 8 divisors (see below), whose sum is σ = 17075240280. Its totient is φ = 5690032320.

The previous prime is 11381779063. The next prime is 11381779081. The reversal of 11381779078 is 87097718311.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 411883 + ... + 438646.

It is an arithmetic number, because the mean of its divisors is an integer number (2134405035).

Almost surely, 2^11381779078 is an apocalyptic number.

11381779078 is a deficient number, since it is larger than the sum of its proper divisors (5693461202).

11381779078 is an equidigital number, since it uses as much as digits as its factorization.

11381779078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857222.

The product of its (nonzero) digits is 592704, while the sum is 52.

The spelling of 11381779078 in words is "eleven billion, three hundred eighty-one million, seven hundred seventy-nine thousand, seventy-eight".