9373742009 has 2 divisors, whose sum is σ = 9373742010. Its totient is φ = 9373742008.

The previous prime is 9373741981. The next prime is 9373742011. The reversal of 9373742009 is 9002473739.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9292381609 + 81360400 = 96397^2 + 9020^2 .

It is a cyclic number.

It is not a de Polignac number, because 9373742009 - 2³² = 5078774713 is a prime.

Together with 9373742011, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9373742039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4686871004 + 4686871005.

It is an arithmetic number, because the mean of its divisors is an integer number (4686871005).

Almost surely, 2^9373742009 is an apocalyptic number.

It is an amenable number.

9373742009 is a deficient number, since it is larger than the sum of its proper divisors (1).

9373742009 is an equidigital number, since it uses as much as digits as its factorization.

9373742009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 285768, while the sum is 44.

The square root of 9373742009 is about 96818.0871996550. The cubic root of 9373742009 is about 2108.4873451954.

The spelling of 9373742009 in words is "nine billion, three hundred seventy-three million, seven hundred forty-two thousand, nine".