29518332481 has 9 divisors (see below), whose sum is σ = 32447847873. Its totient is φ = 26833129620.

The previous prime is 29518332479. The next prime is 29518332491. The reversal of 29518332481 is 18423381592.

The square root of 29518332481 is 171809.

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

It is not a de Polignac number, because 29518332481 - 2¹ = 29518332479 is a prime.

It is a super-2 number, since 2×29518332481² (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 (29518332451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1882090 + ... + 1897708.

Almost surely, 2^29518332481 is an apocalyptic number.

29518332481 is the 171809-th square number.

29518332481 is the 85905-th centered octagonal number.

It is an amenable number.

29518332481 is a deficient number, since it is larger than the sum of its proper divisors (2929515392).

29518332481 is an frugal number, since it uses more digits than its factorization.

29518332481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31260 (or 15630 counting only the distinct ones).

The product of its digits is 414720, while the sum is 46.

The spelling of 29518332481 in words is "twenty-nine billion, five hundred eighteen million, three hundred thirty-two thousand, four hundred eighty-one".