1325256675309 has 32 divisors (see below), whose sum is σ = 2249002999040. Its totient is φ = 755540545536.

The previous prime is 1325256675307. The next prime is 1325256675331. The reversal of 1325256675309 is 9035766525231.

1325256675309 is a `hidden beast` number, since 1 + 3 + 2 + 5 + 2 + 566 + 75 + 3 + 0 + 9 = 666.

It is not a de Polignac number, because 1325256675309 - 2¹ = 1325256675307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325256675307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8015092 + ... + 8178765.

It is an arithmetic number, because the mean of its divisors is an integer number (70281343720).

Almost surely, 2^{1325256675309} is an apocalyptic number.

It is an amenable number.

1325256675309 is a deficient number, since it is larger than the sum of its proper divisors (923746323731).

1325256675309 is a wasteful number, since it uses less digits than its factorization.

1325256675309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16194306 (or 16194300 counting only the distinct ones).

The product of its (nonzero) digits is 10206000, while the sum is 54.

The spelling of 1325256675309 in words is "one trillion, three hundred twenty-five billion, two hundred fifty-six million, six hundred seventy-five thousand, three hundred nine".