329471999993 has 2 divisors, whose sum is σ = 329471999994. Its totient is φ = 329471999992.

The previous prime is 329471999929. The next prime is 329472000007. The reversal of 329471999993 is 399999174923.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 322955797264 + 6516202729 = 568292^2 + 80723^2 .

It is a cyclic number.

It is not a de Polignac number, because 329471999993 - 2⁶ = 329471999929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 329471999993.

It is not a weakly prime, because it can be changed into another prime (329471999293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164735999996 + 164735999997.

It is an arithmetic number, because the mean of its divisors is an integer number (164735999997).

Almost surely, 2^329471999993 is an apocalyptic number.

It is an amenable number.

329471999993 is a deficient number, since it is larger than the sum of its proper divisors (1).

329471999993 is an equidigital number, since it uses as much as digits as its factorization.

329471999993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 267846264, while the sum is 74.

The spelling of 329471999993 in words is "three hundred twenty-nine billion, four hundred seventy-one million, nine hundred ninety-nine thousand, nine hundred ninety-three".