329657259012 has 24 divisors (see below), whose sum is σ = 787088650656. Its totient is φ = 107330270208.

The previous prime is 329657259011. The next prime is 329657259031. The reversal of 329657259012 is 210952756923.

It is a happy number.

It is a super-2 number, since 2×329657259012² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (329657259011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319434813 + ... + 319435844.

It is an arithmetic number, because the mean of its divisors is an integer number (32795360444).

Almost surely, 2^329657259012 is an apocalyptic number.

It is an amenable number.

329657259012 is an abundant number, since it is smaller than the sum of its proper divisors (457431391644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

329657259012 is a wasteful number, since it uses less digits than its factorization.

329657259012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638870707 (or 638870705 counting only the distinct ones).

The product of its (nonzero) digits is 2041200, while the sum is 51.

The spelling of 329657259012 in words is "three hundred twenty-nine billion, six hundred fifty-seven million, two hundred fifty-nine thousand, twelve".