1329422185447 has 8 divisors (see below), whose sum is σ = 1332274844160. Its totient is φ = 1326571270200.

The previous prime is 1329422185423. The next prime is 1329422185489. The reversal of 1329422185447 is 7445812249231.

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

It is a cyclic number.

It is not a de Polignac number, because 1329422185447 - 2¹¹ = 1329422183399 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1329422185394 and 1329422185403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1329422185417) 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, 1096572 + ... + 1965022.

It is an arithmetic number, because the mean of its divisors is an integer number (166534355520).

Almost surely, 2^{1329422185447} is an apocalyptic number.

1329422185447 is a deficient number, since it is larger than the sum of its proper divisors (2852658713).

1329422185447 is an equidigital number, since it uses as much as digits as its factorization.

1329422185447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871733.

The product of its digits is 3870720, while the sum is 52.

The spelling of 1329422185447 in words is "one trillion, three hundred twenty-nine billion, four hundred twenty-two million, one hundred eighty-five thousand, four hundred forty-seven".