1378263363 has 8 divisors (see below), whose sum is σ = 1934404800. Its totient is φ = 870482088.

The previous prime is 1378263353. The next prime is 1378263371. The reversal of 1378263363 is 3633628731.

It is a happy number.

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

It is not a de Polignac number, because 1378263363 - 2⁴ = 1378263347 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1378263343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12089973 + ... + 12090086.

It is an arithmetic number, because the mean of its divisors is an integer number (241800600).

Almost surely, 2^1378263363 is an apocalyptic number.

1378263363 is a deficient number, since it is larger than the sum of its proper divisors (556141437).

1378263363 is a wasteful number, since it uses less digits than its factorization.

1378263363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24180081.

The product of its digits is 326592, while the sum is 42.

The square root of 1378263363 is about 37124.9695353410. The cubic root of 1378263363 is about 1112.8690659193.

The spelling of 1378263363 in words is "one billion, three hundred seventy-eight million, two hundred sixty-three thousand, three hundred sixty-three".