11778328378 has 8 divisors (see below), whose sum is σ = 17670037140. Its totient is φ = 5888316000.

The previous prime is 11778328369. The next prime is 11778328381. The reversal of 11778328378 is 87382387711.

11778328378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 9806346729 + 1971981649 = 99027^2 + 44407^2 .

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

It is a super-2 number, since 2×11778328378² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 406593 + ... + 434596.

Almost surely, 2^11778328378 is an apocalyptic number.

11778328378 is a deficient number, since it is larger than the sum of its proper divisors (5891708762).

11778328378 is an equidigital number, since it uses as much as digits as its factorization.

11778328378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848192.

The product of its digits is 3161088, while the sum is 55.

The spelling of 11778328378 in words is "eleven billion, seven hundred seventy-eight million, three hundred twenty-eight thousand, three hundred seventy-eight".