30194839849 has 2 divisors, whose sum is σ = 30194839850. Its totient is φ = 30194839848.

The previous prime is 30194839813. The next prime is 30194839859. The reversal of 30194839849 is 94893849103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21833017600 + 8361822249 = 147760^2 + 91443^2 .

It is a cyclic number.

It is not a de Polignac number, because 30194839849 - 2¹³ = 30194831657 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30194839793 and 30194839802.

It is not a weakly prime, because it can be changed into another prime (30194839859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15097419924 + 15097419925.

It is an arithmetic number, because the mean of its divisors is an integer number (15097419925).

Almost surely, 2^30194839849 is an apocalyptic number.

It is an amenable number.

30194839849 is a deficient number, since it is larger than the sum of its proper divisors (1).

30194839849 is an equidigital number, since it uses as much as digits as its factorization.

30194839849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6718464, while the sum is 58.

The spelling of 30194839849 in words is "thirty billion, one hundred ninety-four million, eight hundred thirty-nine thousand, eight hundred forty-nine".