30879462989 has 4 divisors (see below), whose sum is σ = 30885317760. Its totient is φ = 30873608220.

The previous prime is 30879462931. The next prime is 30879463031. The reversal of 30879462989 is 98926497803.

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 30879462989 - 2¹⁶ = 30879397453 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30879462389) 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, 2919467 + ... + 2930024.

It is an arithmetic number, because the mean of its divisors is an integer number (7721329440).

Almost surely, 2^30879462989 is an apocalyptic number.

It is an amenable number.

30879462989 is a deficient number, since it is larger than the sum of its proper divisors (5854771).

30879462989 is an equidigital number, since it uses as much as digits as its factorization.

30879462989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5854770.

The product of its (nonzero) digits is 47029248, while the sum is 65.

The spelling of 30879462989 in words is "thirty billion, eight hundred seventy-nine million, four hundred sixty-two thousand, nine hundred eighty-nine".