328562408381 has 32 divisors (see below), whose sum is σ = 355307420160. Its totient is φ = 302706201600.

The previous prime is 328562408309. The next prime is 328562408413. The reversal of 328562408381 is 183804265823.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-328562408381 is a prime.

It is a super-2 number, since 2×328562408381² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328562408981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142295255 + ... + 142297563.

It is an arithmetic number, because the mean of its divisors is an integer number (11103356880).

Almost surely, 2^328562408381 is an apocalyptic number.

It is an amenable number.

328562408381 is a deficient number, since it is larger than the sum of its proper divisors (26745011779).

328562408381 is a wasteful number, since it uses less digits than its factorization.

328562408381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3125.

The product of its (nonzero) digits is 2211840, while the sum is 50.

The spelling of 328562408381 in words is "three hundred twenty-eight billion, five hundred sixty-two million, four hundred eight thousand, three hundred eighty-one".