328243845657 has 24 divisors (see below), whose sum is σ = 548275437696. Its totient is φ = 173139609888.

The previous prime is 328243845617. The next prime is 328243845661. The reversal of 328243845657 is 756548342823.

It is not a de Polignac number, because 328243845657 - 2⁶ = 328243845593 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 328243845597 and 328243845606.

It is not an unprimeable number, because it can be changed into a prime (328243845617) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85880833 + ... + 85884654.

It is an arithmetic number, because the mean of its divisors is an integer number (22844809904).

Almost surely, 2^328243845657 is an apocalyptic number.

It is an amenable number.

328243845657 is a deficient number, since it is larger than the sum of its proper divisors (220031592039).

328243845657 is a wasteful number, since it uses less digits than its factorization.

328243845657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171765517 (or 171765510 counting only the distinct ones).

The product of its digits is 38707200, while the sum is 57.

The spelling of 328243845657 in words is "three hundred twenty-eight billion, two hundred forty-three million, eight hundred forty-five thousand, six hundred fifty-seven".