30838520881 has 9 divisors (see below), whose sum is σ = 35874811449. Its totient is φ = 26431964244.

The previous prime is 30838520851. The next prime is 30838520887. The reversal of 30838520881 is 18802583803.

The square root of 30838520881 is 175609.

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

It is not a de Polignac number, because 30838520881 - 2⁵ = 30838520849 is a prime.

It is a super-2 number, since 2×30838520881² (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 (30838520887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1216720 + ... + 1241806.

It is an arithmetic number, because the mean of its divisors is an integer number (3986090161).

Almost surely, 2^30838520881 is an apocalyptic number.

30838520881 is the 175609-th square number.

30838520881 is the 87805-th centered octagonal number.

It is an amenable number.

30838520881 is a deficient number, since it is larger than the sum of its proper divisors (5036290568).

30838520881 is an frugal number, since it uses more digits than its factorization.

30838520881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50188 (or 25094 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 46.

It can be divided in two parts, 308385 and 20881, that added together give a triangular number (329266 = T₈₁₁).

The spelling of 30838520881 in words is "thirty billion, eight hundred thirty-eight million, five hundred twenty thousand, eight hundred eighty-one".