30642340517 has 2 divisors, whose sum is σ = 30642340518. Its totient is φ = 30642340516.

The previous prime is 30642340493. The next prime is 30642340537. The reversal of 30642340517 is 71504324603.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29462349316 + 1179991201 = 171646^2 + 34351^2 .

It is a cyclic number.

It is not a de Polignac number, because 30642340517 - 2¹⁰ = 30642339493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30642340537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15321170258 + 15321170259.

It is an arithmetic number, because the mean of its divisors is an integer number (15321170259).

Almost surely, 2^30642340517 is an apocalyptic number.

It is an amenable number.

30642340517 is a deficient number, since it is larger than the sum of its proper divisors (1).

30642340517 is an equidigital number, since it uses as much as digits as its factorization.

30642340517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 35.

The spelling of 30642340517 in words is "thirty billion, six hundred forty-two million, three hundred forty thousand, five hundred seventeen".