30805715107 has 2 divisors, whose sum is σ = 30805715108. Its totient is φ = 30805715106.

The previous prime is 30805715069. The next prime is 30805715123. The reversal of 30805715107 is 70151750803.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30805715107 is a prime.

It is not a weakly prime, because it can be changed into another prime (30805715207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15402857553 + 15402857554.

It is an arithmetic number, because the mean of its divisors is an integer number (15402857554).

Almost surely, 2^30805715107 is an apocalyptic number.

30805715107 is a deficient number, since it is larger than the sum of its proper divisors (1).

30805715107 is an equidigital number, since it uses as much as digits as its factorization.

30805715107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29400, while the sum is 37.

The spelling of 30805715107 in words is "thirty billion, eight hundred five million, seven hundred fifteen thousand, one hundred seven".