30908827897 has 2 divisors, whose sum is σ = 30908827898. Its totient is φ = 30908827896.

The previous prime is 30908827883. The next prime is 30908827921. The reversal of 30908827897 is 79872880903.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29977113321 + 931714576 = 173139^2 + 30524^2 .

It is a cyclic number.

It is not a de Polignac number, because 30908827897 - 2⁷ = 30908827769 is a prime.

It is not a weakly prime, because it can be changed into another prime (30908827877) 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, 15454413948 + 15454413949.

It is an arithmetic number, because the mean of its divisors is an integer number (15454413949).

Almost surely, 2^30908827897 is an apocalyptic number.

It is an amenable number.

30908827897 is a deficient number, since it is larger than the sum of its proper divisors (1).

30908827897 is an equidigital number, since it uses as much as digits as its factorization.

30908827897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12192768, while the sum is 61.

The spelling of 30908827897 in words is "thirty billion, nine hundred eight million, eight hundred twenty-seven thousand, eight hundred ninety-seven".