30823771489 has 15 divisors (see below), whose sum is σ = 35968965873. Its totient is φ = 26413001748.

The previous prime is 30823771477. The next prime is 30823771513. The reversal of 30823771489 is 98417732803.

The square root of 30823771489 is 175567.

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

It is not a de Polignac number, because 30823771489 - 2⁵ = 30823771457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30823771409) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 8600992 + ... + 8604574.

Almost surely, 2^30823771489 is an apocalyptic number.

30823771489 is the 175567-th square number.

30823771489 is the 87784-th centered octagonal number.

It is an amenable number.

30823771489 is a deficient number, since it is larger than the sum of its proper divisors (5145194384).

30823771489 is an frugal number, since it uses more digits than its factorization.

30823771489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7194 (or 3590 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 52.

The spelling of 30823771489 in words is "thirty billion, eight hundred twenty-three million, seven hundred seventy-one thousand, four hundred eighty-nine".