9705542069 has 2 divisors, whose sum is σ = 9705542070. Its totient is φ = 9705542068.

The previous prime is 9705541991. The next prime is 9705542087. The reversal of 9705542069 is 9602455079.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7179172900 + 2526369169 = 84730^2 + 50263^2 .

It is a cyclic number.

It is not a de Polignac number, because 9705542069 - 2³² = 5410574773 is a prime.

It is a super-2 number, since 2×9705542069² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9705542669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4852771034 + 4852771035.

It is an arithmetic number, because the mean of its divisors is an integer number (4852771035).

Almost surely, 2^9705542069 is an apocalyptic number.

It is an amenable number.

9705542069 is a deficient number, since it is larger than the sum of its proper divisors (1).

9705542069 is an equidigital number, since it uses as much as digits as its factorization.

9705542069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 680400, while the sum is 47.

The square root of 9705542069 is about 98516.7095928401. The cubic root of 9705542069 is about 2133.0773235079.

The spelling of 9705542069 in words is "nine billion, seven hundred five million, five hundred forty-two thousand, sixty-nine".