1329640627072 has 32 divisors (see below), whose sum is σ = 2651265157320. Its totient is φ = 664225058304.

The previous prime is 1329640627037. The next prime is 1329640627079. The reversal of 1329640627072 is 2707260469231.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1329640627079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4506898 + ... + 4792849.

Almost surely, 2^{1329640627072} is an apocalyptic number.

It is an amenable number.

1329640627072 is a deficient number, since it is larger than the sum of its proper divisors (1321624530248).

1329640627072 is an equidigital number, since it uses as much as digits as its factorization.

1329640627072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9300878 (or 9300866 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 49.

The spelling of 1329640627072 in words is "one trillion, three hundred twenty-nine billion, six hundred forty million, six hundred twenty-seven thousand, seventy-two".