30984869979 has 28 divisors (see below), whose sum is σ = 53092641136. Its totient is φ = 17705637072.

The previous prime is 30984869963. The next prime is 30984869983. The reversal of 30984869979 is 97996848903.

It is not a de Polignac number, because 30984869979 - 2⁴ = 30984869963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30984859979) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 3030844 + ... + 3041049.

Almost surely, 2^30984869979 is an apocalyptic number.

30984869979 is a deficient number, since it is larger than the sum of its proper divisors (22107771157).

30984869979 is an frugal number, since it uses more digits than its factorization.

30984869979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6071918 (or 6071903 counting only the distinct ones).

The product of its (nonzero) digits is 211631616, while the sum is 72.

The spelling of 30984869979 in words is "thirty billion, nine hundred eighty-four million, eight hundred sixty-nine thousand, nine hundred seventy-nine".