1328378063 has 2 divisors, whose sum is σ = 1328378064. Its totient is φ = 1328378062.

The previous prime is 1328378057. The next prime is 1328378101. The reversal of 1328378063 is 3608738231.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1328378063 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1328378063.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1328378003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664189031 + 664189032.

It is an arithmetic number, because the mean of its divisors is an integer number (664189032).

Almost surely, 2^1328378063 is an apocalyptic number.

1328378063 is a deficient number, since it is larger than the sum of its proper divisors (1).

1328378063 is an equidigital number, since it uses as much as digits as its factorization.

1328378063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 1328378063 is about 36446.9211731252. The cubic root of 1328378063 is about 1099.2772285019.

The spelling of 1328378063 in words is "one billion, three hundred twenty-eight million, three hundred seventy-eight thousand, sixty-three".