30006815542139 has 2 divisors, whose sum is σ = 30006815542140. Its totient is φ = 30006815542138.

The previous prime is 30006815542127. The next prime is 30006815542147. The reversal of 30006815542139 is 93124551860003.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30006815542139 - 2¹² = 30006815538043 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 30006815542093 and 30006815542102.

It is not a weakly prime, because it can be changed into another prime (30006815542199) 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 as a sum of consecutive naturals, namely, 15003407771069 + 15003407771070.

It is an arithmetic number, because the mean of its divisors is an integer number (15003407771070).

Almost surely, 2^{30006815542139} is an apocalyptic number.

30006815542139 is a deficient number, since it is larger than the sum of its proper divisors (1).

30006815542139 is an equidigital number, since it uses as much as digits as its factorization.

30006815542139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 777600, while the sum is 47.

The spelling of 30006815542139 in words is "thirty trillion, six billion, eight hundred fifteen million, five hundred forty-two thousand, one hundred thirty-nine".