29529329281 has 9 divisors (see below), whose sum is σ = 29694699841. Its totient is φ = 29364877444.

The previous prime is 29529329243. The next prime is 29529329299. The reversal of 29529329281 is 18292392592.

The square root of 29529329281 is 171841.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 29529329281 - 2¹³ = 29529321089 is a prime.

It is a super-2 number, since 2×29529329281² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29529329201) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 41069640 + ... + 41070358.

Almost surely, 2^29529329281 is an apocalyptic number.

29529329281 is the 171841-st square number.

29529329281 is the 85921-st centered octagonal number.

It is an amenable number.

29529329281 is a deficient number, since it is larger than the sum of its proper divisors (165370560).

29529329281 is an frugal number, since it uses more digits than its factorization.

29529329281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1916 (or 958 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 52.

The spelling of 29529329281 in words is "twenty-nine billion, five hundred twenty-nine million, three hundred twenty-nine thousand, two hundred eighty-one".