29880233881 has 3 divisors (see below), whose sum is σ = 29880406741. Its totient is φ = 29880061022.

The previous prime is 29880233849. The next prime is 29880233941. The reversal of 29880233881 is 18833208892.

The square root of 29880233881 is 172859.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 29880233881 - 2⁵ = 29880233849 is a prime.

It is a super-2 number, since 2×29880233881² (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 (29880233281) 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 2 ways as a sum of consecutive naturals, for example, 86430 + ... + 259288.

Almost surely, 2^29880233881 is an apocalyptic number.

29880233881 is the 172859-th square number.

29880233881 is the 86430-th centered octagonal number.

It is an amenable number.

29880233881 is a deficient number, since it is larger than the sum of its proper divisors (172860).

29880233881 is an frugal number, since it uses more digits than its factorization.

29880233881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345718 (or 172859 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 52.

The spelling of 29880233881 in words is "twenty-nine billion, eight hundred eighty million, two hundred thirty-three thousand, eight hundred eighty-one".