328507073561 has 8 divisors (see below), whose sum is σ = 333460929600. Its totient is φ = 323562300880.

The previous prime is 328507073539. The next prime is 328507073569. The reversal of 328507073561 is 165370705823.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 328507073561 - 2³⁰ = 327433331737 is a prime.

It is a super-2 number, since 2×328507073561² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328507073569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2197946 + ... + 2342643.

It is an arithmetic number, because the mean of its divisors is an integer number (41682616200).

Almost surely, 2^328507073561 is an apocalyptic number.

It is an amenable number.

328507073561 is a deficient number, since it is larger than the sum of its proper divisors (4953856039).

328507073561 is a wasteful number, since it uses less digits than its factorization.

328507073561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4541679.

The product of its (nonzero) digits is 1058400, while the sum is 47.

The spelling of 328507073561 in words is "three hundred twenty-eight billion, five hundred seven million, seventy-three thousand, five hundred sixty-one".