29081681321327 has 8 divisors (see below), whose sum is σ = 29319106592256. Its totient is φ = 28845150308352.

The previous prime is 29081681321293. The next prime is 29081681321339. The reversal of 29081681321327 is 72312318618092.

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 29081681321327 - 2¹² = 29081681317231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29081681321377) 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, 223499183 + ... + 223629264.

It is an arithmetic number, because the mean of its divisors is an integer number (3664888324032).

Almost surely, 2^{29081681321327} is an apocalyptic number.

29081681321327 is a deficient number, since it is larger than the sum of its proper divisors (237425270929).

29081681321327 is a wasteful number, since it uses less digits than its factorization.

29081681321327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447128977.

The product of its (nonzero) digits is 1741824, while the sum is 53.

The spelling of 29081681321327 in words is "twenty-nine trillion, eighty-one billion, six hundred eighty-one million, three hundred twenty-one thousand, three hundred twenty-seven".