30108517889 has 2 divisors, whose sum is σ = 30108517890. Its totient is φ = 30108517888.

The previous prime is 30108517883. The next prime is 30108517891. The reversal of 30108517889 is 98871580103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22592494864 + 7516023025 = 150308^2 + 86695^2 .

It is a cyclic number.

It is not a de Polignac number, because 30108517889 - 2³² = 25813550593 is a prime.

Together with 30108517891, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30108517883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15054258944 + 15054258945.

It is an arithmetic number, because the mean of its divisors is an integer number (15054258945).

Almost surely, 2^30108517889 is an apocalyptic number.

It is an amenable number.

30108517889 is a deficient number, since it is larger than the sum of its proper divisors (1).

30108517889 is an equidigital number, since it uses as much as digits as its factorization.

30108517889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 50.

The spelling of 30108517889 in words is "thirty billion, one hundred eight million, five hundred seventeen thousand, eight hundred eighty-nine".