30805715069 has 2 divisors, whose sum is σ = 30805715070. Its totient is φ = 30805715068.

The previous prime is 30805715009. The next prime is 30805715107. The reversal of 30805715069 is 96051750803.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23298359044 + 7507356025 = 152638^2 + 86645^2 .

It is a cyclic number.

It is not a de Polignac number, because 30805715069 - 2²⁰ = 30804666493 is a prime.

It is a super-2 number, since 2×30805715069² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30805715009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15402857534 + 15402857535.

It is an arithmetic number, because the mean of its divisors is an integer number (15402857535).

Almost surely, 2^30805715069 is an apocalyptic number.

It is an amenable number.

30805715069 is a deficient number, since it is larger than the sum of its proper divisors (1).

30805715069 is an equidigital number, since it uses as much as digits as its factorization.

30805715069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 226800, while the sum is 44.

The spelling of 30805715069 in words is "thirty billion, eight hundred five million, seven hundred fifteen thousand, sixty-nine".