328317662537 has 2 divisors, whose sum is σ = 328317662538. Its totient is φ = 328317662536.

The previous prime is 328317662461. The next prime is 328317662549. The reversal of 328317662537 is 735266713823.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 168576757561 + 159740904976 = 410581^2 + 399676^2 .

It is an emirp because it is prime and its reverse (735266713823) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 328317662537 - 2¹⁰ = 328317661513 is a prime.

It is not a weakly prime, because it can be changed into another prime (328317622537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164158831268 + 164158831269.

It is an arithmetic number, because the mean of its divisors is an integer number (164158831269).

Almost surely, 2^328317662537 is an apocalyptic number.

It is an amenable number.

328317662537 is a deficient number, since it is larger than the sum of its proper divisors (1).

328317662537 is an equidigital number, since it uses as much as digits as its factorization.

328317662537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7620480, while the sum is 53.

The spelling of 328317662537 in words is "three hundred twenty-eight billion, three hundred seventeen million, six hundred sixty-two thousand, five hundred thirty-seven".