1328813845725 has 24 divisors (see below), whose sum is σ = 2248064607712. Its totient is φ = 692219304000.

The previous prime is 1328813845649. The next prime is 1328813845747. The reversal of 1328813845725 is 5275483188231.

It is not a de Polignac number, because 1328813845725 - 2³⁶ = 1260094368989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 206014426 + ... + 206020875.

Almost surely, 2^{1328813845725} is an apocalyptic number.

1328813845725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1328813845725 is a deficient number, since it is larger than the sum of its proper divisors (919250761987).

1328813845725 is a wasteful number, since it uses less digits than its factorization.

1328813845725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412035357 (or 412035352 counting only the distinct ones).

The product of its digits is 12902400, while the sum is 57.

The spelling of 1328813845725 in words is "one trillion, three hundred twenty-eight billion, eight hundred thirteen million, eight hundred forty-five thousand, seven hundred twenty-five".