1326959963 has 4 divisors (see below), whose sum is σ = 1516525680. Its totient is φ = 1137394248.

The previous prime is 1326959951. The next prime is 1326959969. The reversal of 1326959963 is 3699596231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1326959963 - 2⁴ = 1326959947 is a prime.

It is a super-2 number, since 2×1326959963² = 3521645486809922738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1326959969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94782848 + ... + 94782861.

It is an arithmetic number, because the mean of its divisors is an integer number (379131420).

Almost surely, 2^1326959963 is an apocalyptic number.

1326959963 is a deficient number, since it is larger than the sum of its proper divisors (189565717).

1326959963 is an equidigital number, since it uses as much as digits as its factorization.

1326959963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189565716.

The product of its digits is 2361960, while the sum is 53.

The square root of 1326959963 is about 36427.4616601267. The cubic root of 1326959963 is about 1098.8859141777.

The spelling of 1326959963 in words is "one billion, three hundred twenty-six million, nine hundred fifty-nine thousand, nine hundred sixty-three".