1328466249897 has 4 divisors (see below), whose sum is σ = 1771288333200. Its totient is φ = 885644166596.

The previous prime is 1328466249883. The next prime is 1328466249937. The reversal of 1328466249897 is 7989426648231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1328466249897 - 2⁴ = 1328466249881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1328466241897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221411041647 + ... + 221411041652.

It is an arithmetic number, because the mean of its divisors is an integer number (442822083300).

Almost surely, 2^{1328466249897} is an apocalyptic number.

It is an amenable number.

1328466249897 is a deficient number, since it is larger than the sum of its proper divisors (442822083303).

1328466249897 is an equidigital number, since it uses as much as digits as its factorization.

1328466249897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442822083302.

The product of its digits is 250822656, while the sum is 69.

The spelling of 1328466249897 in words is "one trillion, three hundred twenty-eight billion, four hundred sixty-six million, two hundred forty-nine thousand, eight hundred ninety-seven".