1378433363 has 2 divisors, whose sum is σ = 1378433364. Its totient is φ = 1378433362.

The previous prime is 1378433347. The next prime is 1378433429. The reversal of 1378433363 is 3633348731.

It is a weak prime.

It is an emirp because it is prime and its reverse (3633348731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1378433363 - 2⁴ = 1378433347 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1378433363.

It is not a weakly prime, because it can be changed into another prime (1378433863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 689216681 + 689216682.

It is an arithmetic number, because the mean of its divisors is an integer number (689216682).

Almost surely, 2^1378433363 is an apocalyptic number.

1378433363 is a deficient number, since it is larger than the sum of its proper divisors (1).

1378433363 is an equidigital number, since it uses as much as digits as its factorization.

1378433363 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 41.

The square root of 1378433363 is about 37127.2590289130. The cubic root of 1378433363 is about 1112.9148191400.

The spelling of 1378433363 in words is "one billion, three hundred seventy-eight million, four hundred thirty-three thousand, three hundred sixty-three".