30540012409 has 2 divisors, whose sum is σ = 30540012410. Its totient is φ = 30540012408.

The previous prime is 30540012403. The next prime is 30540012443. The reversal of 30540012409 is 90421004503.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17258602384 + 13281410025 = 131372^2 + 115245^2 .

It is a cyclic number.

It is not a de Polignac number, because 30540012409 - 2⁹ = 30540011897 is a prime.

It is not a weakly prime, because it can be changed into another prime (30540012403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15270006204 + 15270006205.

It is an arithmetic number, because the mean of its divisors is an integer number (15270006205).

Almost surely, 2^30540012409 is an apocalyptic number.

It is an amenable number.

30540012409 is a deficient number, since it is larger than the sum of its proper divisors (1).

30540012409 is an equidigital number, since it uses as much as digits as its factorization.

30540012409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 30540012409 in words is "thirty billion, five hundred forty million, twelve thousand, four hundred nine".