30984893109 has 6 divisors (see below), whose sum is σ = 44755956726. Its totient is φ = 20656595400.

The previous prime is 30984893101. The next prime is 30984893153. The reversal of 30984893109 is 90139848903.

It can be written as a sum of positive squares in only one way, i.e., 24428752209 + 6556140900 = 156297^2 + 80970^2 .

It is not a de Polignac number, because 30984893109 - 2³ = 30984893101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30984893101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1721382942 + ... + 1721382959.

It is an arithmetic number, because the mean of its divisors is an integer number (7459326121).

Almost surely, 2^30984893109 is an apocalyptic number.

It is an amenable number.

30984893109 is a deficient number, since it is larger than the sum of its proper divisors (13771063617).

30984893109 is a wasteful number, since it uses less digits than its factorization.

30984893109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3442765907 (or 3442765904 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The spelling of 30984893109 in words is "thirty billion, nine hundred eighty-four million, eight hundred ninety-three thousand, one hundred nine".