378843466433 has 2 divisors, whose sum is σ = 378843466434. Its totient is φ = 378843466432.

The previous prime is 378843466381. The next prime is 378843466457. The reversal of 378843466433 is 334664348873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 377921251009 + 922215424 = 614753^2 + 30368^2 .

It is a cyclic number.

It is not a de Polignac number, because 378843466433 - 2³² = 374548499137 is a prime.

It is not a weakly prime, because it can be changed into another prime (378843466483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189421733216 + 189421733217.

It is an arithmetic number, because the mean of its divisors is an integer number (189421733217).

Almost surely, 2^378843466433 is an apocalyptic number.

It is an amenable number.

378843466433 is a deficient number, since it is larger than the sum of its proper divisors (1).

378843466433 is an equidigital number, since it uses as much as digits as its factorization.

378843466433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 83607552, while the sum is 59.

The spelling of 378843466433 in words is "three hundred seventy-eight billion, eight hundred forty-three million, four hundred sixty-six thousand, four hundred thirty-three".