1322872989643 has 8 divisors (see below), whose sum is σ = 1397862489600. Its totient is φ = 1249339596648.

The previous prime is 1322872989617. The next prime is 1322872989649. The reversal of 1322872989643 is 3469892782231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1322872989643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1322872989649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364024873 + ... + 364028506.

It is an arithmetic number, because the mean of its divisors is an integer number (174732811200).

Almost surely, 2^{1322872989643} is an apocalyptic number.

1322872989643 is a deficient number, since it is larger than the sum of its proper divisors (74989499957).

1322872989643 is an equidigital number, since it uses as much as digits as its factorization.

1322872989643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728053481.

The product of its digits is 62705664, while the sum is 64.

The spelling of 1322872989643 in words is "one trillion, three hundred twenty-two billion, eight hundred seventy-two million, nine hundred eighty-nine thousand, six hundred forty-three".