1329935771944 has 32 divisors (see below), whose sum is σ = 2826786564000. Its totient is φ = 581510377152.

The previous prime is 1329935771939. The next prime is 1329935771953. The reversal of 1329935771944 is 4491775399231.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 336520234 + ... + 336524185.

It is an arithmetic number, because the mean of its divisors is an integer number (88337080125).

Almost surely, 2^{1329935771944} is an apocalyptic number.

It is an amenable number.

1329935771944 is an abundant number, since it is smaller than the sum of its proper divisors (1496850792056).

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

1329935771944 is a wasteful number, since it uses less digits than its factorization.

1329935771944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673044457 (or 673044453 counting only the distinct ones).

The product of its digits is 51438240, while the sum is 64.

The spelling of 1329935771944 in words is "one trillion, three hundred twenty-nine billion, nine hundred thirty-five million, seven hundred seventy-one thousand, nine hundred forty-four".