329140354409 has 4 divisors (see below), whose sum is σ = 329142336000. Its totient is φ = 329138372820.

The previous prime is 329140354391. The next prime is 329140354463. The reversal of 329140354409 is 904453041923.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 904453041923 = 23 ⋅39324045301.

It is a cyclic number.

It is not a de Polignac number, because 329140354409 - 2²⁸ = 328871918953 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 329140354409.

It is not an unprimeable number, because it can be changed into a prime (329140354009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 716297 + ... + 1082294.

It is an arithmetic number, because the mean of its divisors is an integer number (82285584000).

Almost surely, 2^329140354409 is an apocalyptic number.

It is an amenable number.

329140354409 is a deficient number, since it is larger than the sum of its proper divisors (1981591).

329140354409 is a wasteful number, since it uses less digits than its factorization.

329140354409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1981590.

The product of its (nonzero) digits is 466560, while the sum is 44.

The spelling of 329140354409 in words is "three hundred twenty-nine billion, one hundred forty million, three hundred fifty-four thousand, four hundred nine".