30000866989 has 4 divisors (see below), whose sum is σ = 30509356320. Its totient is φ = 29492377660.

The previous prime is 30000866971. The next prime is 30000867031. The reversal of 30000866989 is 98966800003.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30000866989 - 2¹⁵ = 30000834221 is a prime.

It is a super-2 number, since 2×30000866989² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30000866089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254244577 + ... + 254244694.

It is an arithmetic number, because the mean of its divisors is an integer number (7627339080).

Almost surely, 2^30000866989 is an apocalyptic number.

It is an amenable number.

30000866989 is a deficient number, since it is larger than the sum of its proper divisors (508489331).

30000866989 is an equidigital number, since it uses as much as digits as its factorization.

30000866989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508489330.

The product of its (nonzero) digits is 559872, while the sum is 49.

The spelling of 30000866989 in words is "thirty billion, eight hundred sixty-six thousand, nine hundred eighty-nine".