30105939933947 has 2 divisors, whose sum is σ = 30105939933948. Its totient is φ = 30105939933946.

The previous prime is 30105939933899. The next prime is 30105939933967. The reversal of 30105939933947 is 74933993950103.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30105939933947 - 2¹⁴ = 30105939917563 is a prime.

It is not a weakly prime, because it can be changed into another prime (30105939933967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15052969966973 + 15052969966974.

It is an arithmetic number, because the mean of its divisors is an integer number (15052969966974).

Almost surely, 2^{30105939933947} is an apocalyptic number.

30105939933947 is a deficient number, since it is larger than the sum of its proper divisors (1).

30105939933947 is an equidigital number, since it uses as much as digits as its factorization.

30105939933947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 74401740, while the sum is 65.

The spelling of 30105939933947 in words is "thirty trillion, one hundred five billion, nine hundred thirty-nine million, nine hundred thirty-three thousand, nine hundred forty-seven".