11778348067 has 2 divisors, whose sum is σ = 11778348068. Its totient is φ = 11778348066.

The previous prime is 11778348059. The next prime is 11778348079. The reversal of 11778348067 is 76084387711.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11778348067 - 2³ = 11778348059 is a prime.

It is not a weakly prime, because it can be changed into another prime (11778349067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5889174033 + 5889174034.

It is an arithmetic number, because the mean of its divisors is an integer number (5889174034).

Almost surely, 2^11778348067 is an apocalyptic number.

11778348067 is a deficient number, since it is larger than the sum of its proper divisors (1).

11778348067 is an equidigital number, since it uses as much as digits as its factorization.

11778348067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1580544, while the sum is 52.

The spelling of 11778348067 in words is "eleven billion, seven hundred seventy-eight million, three hundred forty-eight thousand, sixty-seven".