30865700009 has 2 divisors, whose sum is σ = 30865700010. Its totient is φ = 30865700008.

The previous prime is 30865699967. The next prime is 30865700027. The reversal of 30865700009 is 90000756803.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23448184384 + 7417515625 = 153128^2 + 86125^2 .

It is a cyclic number.

It is not a de Polignac number, because 30865700009 - 2²⁸ = 30597264553 is a prime.

It is not a weakly prime, because it can be changed into another prime (30865700029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15432850004 + 15432850005.

It is an arithmetic number, because the mean of its divisors is an integer number (15432850005).

Almost surely, 2^30865700009 is an apocalyptic number.

It is an amenable number.

30865700009 is a deficient number, since it is larger than the sum of its proper divisors (1).

30865700009 is an equidigital number, since it uses as much as digits as its factorization.

30865700009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 38.

The spelling of 30865700009 in words is "thirty billion, eight hundred sixty-five million, seven hundred thousand, nine".