1329144470738 has 90 divisors (see below), whose sum is σ = 2362354725303. Its totient is φ = 560833935480.

The previous prime is 1329144470707. The next prime is 1329144470761. The reversal of 1329144470738 is 8370744419231.

It can be written as a sum of positive squares in only one way, i.e., 664572235369 + 664572235369 = 815213^2 + 815213^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=815213.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1329144470738.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 10146140933 + ... + 10146141063.

Almost surely, 2^{1329144470738} is an apocalyptic number.

1329144470738 is a deficient number, since it is larger than the sum of its proper divisors (1033210254565).

1329144470738 is an frugal number, since it uses more digits than its factorization.

1329144470738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 53.

Adding to 1329144470738 its reverse (8370744419231), we get a palindrome (9699888889969).

The spelling of 1329144470738 in words is "one trillion, three hundred twenty-nine billion, one hundred forty-four million, four hundred seventy thousand, seven hundred thirty-eight".