378228474769 has 2 divisors, whose sum is σ = 378228474770. Its totient is φ = 378228474768.

The previous prime is 378228474697. The next prime is 378228474901. The reversal of 378228474769 is 967474822873.

Together with previous prime (378228474697) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 362000772225 + 16227702544 = 601665^2 + 127388^2 .

It is a cyclic number.

It is not a de Polignac number, because 378228474769 - 2¹⁹ = 378227950481 is a prime.

It is a super-2 number, since 2×378228474769² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (378228474469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189114237384 + 189114237385.

It is an arithmetic number, because the mean of its divisors is an integer number (189114237385).

Almost surely, 2^378228474769 is an apocalyptic number.

It is an amenable number.

378228474769 is a deficient number, since it is larger than the sum of its proper divisors (1).

378228474769 is an equidigital number, since it uses as much as digits as its factorization.

378228474769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 227598336, while the sum is 67.

The spelling of 378228474769 in words is "three hundred seventy-eight billion, two hundred twenty-eight million, four hundred seventy-four thousand, seven hundred sixty-nine".