30505907827 has 2 divisors, whose sum is σ = 30505907828. Its totient is φ = 30505907826.

The previous prime is 30505907779. The next prime is 30505907893. The reversal of 30505907827 is 72870950503.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30505907827 - 2¹¹ = 30505905779 is a prime.

It is a super-2 number, since 2×30505907827² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30505907527) 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, 15252953913 + 15252953914.

It is an arithmetic number, because the mean of its divisors is an integer number (15252953914).

Almost surely, 2^30505907827 is an apocalyptic number.

30505907827 is a deficient number, since it is larger than the sum of its proper divisors (1).

30505907827 is an equidigital number, since it uses as much as digits as its factorization.

30505907827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 529200, while the sum is 46.

The spelling of 30505907827 in words is "thirty billion, five hundred five million, nine hundred seven thousand, eight hundred twenty-seven".