1328163377 has 2 divisors, whose sum is σ = 1328163378. Its totient is φ = 1328163376.

The previous prime is 1328163371. The next prime is 1328163401. The reversal of 1328163377 is 7733618231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 943964176 + 384199201 = 30724^2 + 19601^2 .

It is a cyclic number.

It is not a de Polignac number, because 1328163377 - 2¹² = 1328159281 is a prime.

It is not a weakly prime, because it can be changed into another prime (1328163371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664081688 + 664081689.

It is an arithmetic number, because the mean of its divisors is an integer number (664081689).

Almost surely, 2^1328163377 is an apocalyptic number.

It is an amenable number.

1328163377 is a deficient number, since it is larger than the sum of its proper divisors (1).

1328163377 is an equidigital number, since it uses as much as digits as its factorization.

1328163377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 41.

The square root of 1328163377 is about 36443.9758670758. The cubic root of 1328163377 is about 1099.2180053655.

The spelling of 1328163377 in words is "one billion, three hundred twenty-eight million, one hundred sixty-three thousand, three hundred seventy-seven".