1328285194157 has 2 divisors, whose sum is σ = 1328285194158. Its totient is φ = 1328285194156.

The previous prime is 1328285194153. The next prime is 1328285194169. The reversal of 1328285194157 is 7514915828231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1212672273796 + 115612920361 = 1101214^2 + 340019^2 .

It is a cyclic number.

It is not a de Polignac number, because 1328285194157 - 2² = 1328285194153 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1328285194153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664142597078 + 664142597079.

It is an arithmetic number, because the mean of its divisors is an integer number (664142597079).

Almost surely, 2^{1328285194157} is an apocalyptic number.

It is an amenable number.

1328285194157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1328285194157 is an equidigital number, since it uses as much as digits as its factorization.

1328285194157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4838400, while the sum is 56.

The spelling of 1328285194157 in words is "one trillion, three hundred twenty-eight billion, two hundred eighty-five million, one hundred ninety-four thousand, one hundred fifty-seven".